IMPERIUM ROMANUM

The Index

Wars, battles and campaigns

Each with its sides, its commanders and how it ended.

Wars 57

First Samnite War contested

343-341 BCE · Campania

Roman intervention around Capua began the conventional first phase of the Samnite conflicts.

Sides
Roman Republic, Samnite communities
Commanders
Marcus Valerius Corvus, Roman consuls, Samnite leaders
Outcome
A short settlement preceded the Latin War.

Read the war in Wars →

See also Samnites, Capua

Read further Livy History of Rome Book 7

Latin War

340-338 BCE · Latium and Campania

Former allies fought over the terms of Roman leadership and the political structure of the Latin alliance.

Sides
Rome and allied Samnites, Latin and Campanian communities
Commanders
Titus Manlius Torquatus, Publius Decius Mus, Latin commanders
Outcome
Rome dismantled the collective league and imposed differentiated settlements.

Read the war in Wars →

See also Latins, Roman citizenship

In the volumes Book I · Chapter 4: The Coalition War: Sentinum and Its Antecedents · Book II · Chapter 6: Cannae

Read further Livy History of Rome Book 8

THE SETTLEMENT OF 338 BC — Latium reorganized as a graduated system
PlateBook ITHE SETTLEMENT OF 338 BC — Latium reorganized as a graduated system

Second Samnite War

326-304 BCE · Central and southern Italy

Long conflict over regional influence, communications and alliances, including the Roman surrender at Caudium.

Sides
Roman Republic and allies, Samnites and allies
Commanders
Roman consuls, Gaius Pontius
Outcome
Roman recovery and settlement strengthened its Italian position.

Read the war in Wars →

See also Caudine Forks, Samnites

Read further Livy History of Rome Book 9

Third Samnite War

298-290 BCE · Central Italy

Rome confronted Samnites and a wider coalition; the alignment of opponents changed between campaigns.

Sides
Roman Republic and allies, Samnites Gauls Etruscans and Umbrians
Commanders
Fabius Rullianus, Decius Mus the younger, Gellius Egnatius
Outcome
Roman victory reduced the coalition and subordinated Samnium.

Read the war in Wars →

See also Sentinum, Samnites

Read further Livy History of Rome Book 10

Pyrrhic War

280-275 BCE · Italy and Sicily

Tarentum sought Pyrrhus assistance against Rome; his Italian and Sicilian operations failed to secure a lasting settlement.

Sides
Rome and Italian allies, Pyrrhus Tarentum and allies
Commanders
Pyrrhus, Publius Valerius Laevinus, Curius Dentatus
Outcome
Pyrrhus withdrew; Tarentum surrendered in 272 BCE.

See also Heraclea, Asculum, Beneventum

In the volumes Book I · Chapter 6: The Consolidation of Italy · Book I · Proem · Book I · Epilogue: Rome in 264 BC

Read further Plutarch Life of Pyrrhus

THE PYRRHIC WAR, 280–275 BC — the king's five-year circuit
PlateBook ITHE PYRRHIC WAR, 280–275 BC — the king's five-year circuit

First Punic War

264-241 BCE · Sicily western Mediterranean and Africa

Rome and Carthage fought for Sicily through sieges, fleets and an unsuccessful Roman invasion of Africa.

Sides
Roman Republic and allies, Carthage and allies
Commanders
Duilius, Regulus, Lutatius Catulus, Hamilcar Barca
Outcome
Carthage surrendered Sicily and paid an indemnity.

Read the war in Wars →

See also Mylae, Aegates Islands, Sicilia

Read further Polybius Histories Book 1

First Illyrian War

229-228 BCE · Adriatic coast

Roman naval and land intervention confronted the Illyrian kingdom associated with Teuta.

Sides
Roman Republic, Illyrian kingdom
Commanders
Gnaeus Fulvius Centumalus, Lucius Postumius Albinus, Teuta
Outcome
Rome established an eastern Adriatic protectorate network.

Read the war in Wars →

Read further Polybius Histories Book 2

Second Illyrian War

219 BCE · Adriatic coast

Rome attacked Demetrius of Pharos after renewed challenges to its Adriatic settlement.

Sides
Roman Republic, Demetrius of Pharos and allies
Commanders
Lucius Aemilius Paullus, Demetrius of Pharos
Outcome
Demetrius fled to Macedonia; Roman influence expanded.

See also First Illyrian War, Macedonia

Read further Polybius Histories Book 2

Second Punic War

218-201 BCE · Italy Iberia Sicily and Africa

Hannibal attack on Rome alliance system met sustained Roman mobilization and counteroffensives across several theaters.

Sides
Roman Republic and changing allies, Carthage and changing allies
Commanders
Hannibal, Scipio Africanus, Fabius Maximus, Hasdrubal Barca
Outcome
Zama and peace ended Carthage independent great-power role.

Read the war in Wars →

See also Cannae, Ilipa, Zama

Read further Polybius Histories Book 3 · Polybius Histories Book 15

First Macedonian War

215-205 BCE · Adriatic and Greece

Philip V alliance with Hannibal drew Rome into Greek coalition warfare.

Sides
Rome Aetolian League and allies, Philip V and allies
Commanders
Philip V, Marcus Valerius Laevinus, Greek commanders
Outcome
Peace of Phoenice ended the conflict without destroying Macedonian power.

Read the war in Wars →

Read further Polybius Histories Book 3

Second Macedonian War

200-197 BCE · Greece

Rome and Greek allies confronted Philip V, culminating in the defeat of his field army.

Sides
Rome and Greek allies, Macedonia
Commanders
Titus Quinctius Flamininus, Philip V
Outcome
Philip lost overseas possessions; Rome proclaimed Greek freedom in 196 BCE.

Read the war in Wars →

See also Cynoscephalae, Macedonia

Read further Polybius Histories Book 18

Roman Seleucid War

192-188 BCE · Greece Aegean and Anatolia

Antiochus III intervention in Greece brought war with Rome and its regional allies.

Sides
Rome Pergamon Rhodes and allies, Seleucid kingdom and Aetolian allies
Commanders
Antiochus III, Lucius Cornelius Scipio, Eumenes II
Outcome
Apamea settlement expelled Seleucid power from most of Asia Minor.

See also Thermopylae 191 BCE, Magnesia

Read further Livy History of Rome Book 36 · Livy History of Rome Book 37

Republican Wars across the Mediterranean
MapIndex ArchiveRepublican Wars across the Mediterranean

Third Macedonian War

171-168 BCE · Macedonia and Greece

Conflict with Perseus ended in a decisive Roman invasion and victory.

Sides
Roman Republic and allies, Macedonia and allies
Commanders
Lucius Aemilius Paullus, Perseus
Outcome
Monarchy abolished; Macedonia initially divided into four republics.

Read the war in Wars →

See also Pydna, Macedonia

Read further Plutarch Life of Aemilius

Lusitanian War

155-139 BCE · Western Iberia

Protracted resistance to Roman expansion included Viriathus successful coalition and Roman atrocities and broken agreements.

Sides
Roman Republic, Lusitanian groups and allies
Commanders
Viriathus, Servius Sulpicius Galba, Roman governors
Outcome
Viriathus assassination weakened resistance; conquest remained gradual.

Read the war in Wars →

See also Viriathus, Lusitania

Read further Appian Spanish Wars

Fourth Macedonian War

150-148 BCE · Macedonia

Andriscus claim to Macedonian kingship challenged the post-Pydna settlement.

Sides
Roman Republic and allies, Andriscus and supporters
Commanders
Quintus Caecilius Metellus, Andriscus
Outcome
Roman victory led to provincial annexation of Macedonia.

Read the war in Wars →

See also Macedonia

Read further Livy Periochae 46-50

Third Punic War

149-146 BCE · North Africa

Rome besieged Carthage after demands incompatible with the continued existence of the city.

Sides
Roman Republic, Carthage
Commanders
Scipio Aemilianus, Hasdrubal the Boetharch
Outcome
Carthage destroyed; Roman Africa province established.

Read the war in Wars →

See also Carthage

Read further Appian Punic Wars

First Servile War contested

135/134-132 BCE · Sicily

Large slave revolt formed a rebel kingdom amid severe exploitation on Sicilian estates.

Sides
Roman Republic, Rebel enslaved people and supporters
Commanders
Eunus, Cleon, Publius Rupilius
Outcome
Roman suppression ended the kingdom.

See also Eunus, Slavery

Read further Diodorus Library Books 34-35 fragments

Cimbrian War

113-101 BCE · Alpine Gaul and northern Italy

Migrations and coalition warfare produced Roman disasters before Marius victories.

Sides
Roman Republic, Cimbri Teutones Ambrones and allies
Commanders
Gaius Marius, Quintus Lutatius Catulus, Boiorix
Outcome
Aquae Sextiae and Vercellae defeated the main invading armies.

Read the war in Wars →

See also Aquae Sextiae, Vercellae

Read further Plutarch Life of Marius

The Cimbrian War Phase 1: Aquae Sextiae (102 BCE)
SlideNotebookLMThe Cimbrian War Phase 1: Aquae Sextiae (102 BCE) from Gaius Marius: An Operational History

Jugurthine War

112-105 BCE · Numidia

A Numidian succession struggle became a Roman war exposing military and political competition at Rome.

Sides
Roman Republic and allies, Jugurtha and changing allies
Commanders
Metellus Numidicus, Gaius Marius, Jugurtha, Sulla
Outcome
Bocchus surrendered Jugurtha; Rome reorganized Numidian power.

Read the war in Wars →

See also Jugurtha, Numidia

In the volumes Book IV · Chapter 4: The Spanish Wars: Lusitanians, Celtiberians, Viriathus, and Numantia

Read further Sallust Jugurthine War

Second Servile War

104-100 BCE · Sicily

Renewed rebellion followed disputes over enslavement and failed emancipation measures.

Sides
Roman Republic, Rebel enslaved people and supporters
Commanders
Salvius Tryphon, Athenion, Manius Aquillius
Outcome
Roman victory after repeated setbacks.

See also Athenion, Slavery

Read further Diodorus Library Book 36 fragments

Social War

91-88 BCE · Italy

Italian allies fought Rome over citizenship and political inclusion; loyalties were not uniformly divided by ethnicity.

Sides
Rome and loyal allies, Italian rebel coalition
Commanders
Sulla, Gnaeus Pompeius Strabo, Quintus Poppaedius Silo
Outcome
Roman victory combined with citizenship concessions transformed Italy.

Read the war in Wars →

See also Roman citizenship

In the volumes Book V · Chapter 4: The Social War and the Civil Wars of Marius and Sulla · Book V · Chapter 5: Wars in the Shadow of the Settlement: Mithridates, Sertorius, Spartacus · Book V · Epilogue: Rome in 31/30 BC · Book I · Chapter 2: The Latin Twilight and the Samnite Dawn · Book I · Chapter 6: The Consolidation of Italy · Book V · Chapter 1: The Gracchan Crisis: The Return of Political Violence · Book VII · Chapter 6: The Auction and the Severan Reconstruction

Read further Appian Civil Wars Book 1

First Mithridatic War

89/88-85 BCE · Anatolia Greece and Aegean

Mithridates expelled Roman power from much of Asia before Sulla counterattacked in Greece.

Sides
Roman Republic and allies, Pontus and allies
Commanders
Sulla, Mithridates VI, Archelaus
Outcome
Peace of Dardanus restored Roman predominance without eliminating Mithridates.

Read the war in Wars →

See also Orchomenus

Read further Appian Mithridatic Wars

Sullan civil wars

88-82 BCE · Italy

Disputes over command and citizenship produced competing armed seizures of Rome and Sulla return from the East.

Sides
Sulla and allies, Marius Cinna and their successors
Commanders
Sulla, Marius, Cinna, Carbo, Samnite allies
Outcome
Sulla dictatorship and proscriptions followed victory.

See also Colline Gate, Lucius Cornelius Sulla

Read further Appian Civil Wars Book 1

The Interlude: the Second Mithridatic War (83-81 B.c.)
SlideNotebookLMThe Interlude: the Second Mithridatic War (83-81 B.c.) from The Mithridatic Wars: A Military Chronology, 88–63 BC

Third Mithridatic War

74-63 BCE · Anatolia Armenia and Black Sea

Conflict over Bithynia expanded through Lucullus invasions and Pompey eastern settlement.

Sides
Roman Republic and allies, Pontus Armenia and allies
Commanders
Lucullus, Pompey, Mithridates VI, Tigranes II
Outcome
Pontic monarchy defeated and Roman provincial reach expanded.

Read the war in Wars →

See also Pontus

Read further Plutarch Life of Lucullus · Plutarch Life of Pompey

Third Servile War

73-71 BCE · Italy

Escaped gladiators and enslaved people created a large mobile insurgency.

Sides
Roman Republic, Spartacus and rebel forces
Commanders
Spartacus, Crassus, Pompey
Outcome
Roman suppression ended the main rebellion; mass crucifixions followed.

Read the war in Wars →

See also Spartacus, Slavery

Read further Plutarch Life of Crassus

Gallic War

58-50 BCE · Gaul Rhine frontier and Britain

Caesar successive campaigns conquered much of Gaul through warfare, alliances, sieges and mass enslavement.

Sides
Caesar Roman armies and allies, Changing Gallic and Germanic coalitions
Commanders
Julius Caesar, Labienus, Vercingetorix, Ariovistus
Outcome
Roman provincial domination followed; resistance continued after Alesia.

Read the war in Wars →

See also Alesia

Read further Caesar Gallic War Book 1 · Caesar Gallic War Book 7

Caesar civil war

49-45 BCE · Italy Spain Greece Egypt Africa

Caesar crossed into Italy against senatorial opponents and Pompey, followed by campaigns against their successor armies.

Sides
Caesarians and allies, Pompeians and senatorial coalition
Commanders
Caesar, Pompey, Labienus, Metellus Scipio
Outcome
Caesar sole supremacy preceded his assassination in 44 BCE.

Read the war in Wars →

See also Pharsalus, Thapsus, Munda

Read further Caesar Civil War Book III · Plutarch Life of Cato Minor

Liberators civil war

43-42 BCE · Eastern Mediterranean

Caesar assassins mobilized provincial resources against the legally constituted Second Triumvirate.

Sides
Antony Octavian Lepidus and allies, Brutus Cassius and allies
Commanders
Mark Antony, Octavian, Brutus, Cassius
Outcome
Philippi destroyed the chief republican field armies.

See also Second Triumvirate

Read further Appian Civil Wars Book 4

Final war of the Republic

32-30 BCE · Greece and Egypt

Octavian coalition fought Antony and Cleopatra after the collapse of triumviral cooperation.

Sides
Octavian and allies, Antony Cleopatra and allies
Commanders
Agrippa, Octavian, Mark Antony, Cleopatra VII
Outcome
Actium and conquest of Egypt left Octavian supreme.

See also Actium, Aegyptus

Read further Plutarch Life of Antony

The Blockade of Greece (Early 31 BCE)
SlideNotebookLMThe Blockade of Greece (Early 31 BCE) from Augustus: A Military Chronology, 44 BC – AD 14

Cantabrian and Asturian Wars

29-19 BCE · Northern Iberia

Repeated Augustan campaigns completed Roman conquest of the northern peninsula through harsh subjugation.

Sides
Roman Empire, Cantabri Astures and allies
Commanders
Augustus, Agrippa, Roman commanders
Outcome
Northern Iberia incorporated under Roman control.

See also Hispania, Agrippa

Read further Cassius Dio Roman History Book 54

Great Illyrian Revolt

6-9 CE · Dalmatia and Pannonia

Large provincial revolt required sustained imperial mobilization while other frontier operations were suspended.

Sides
Roman Empire and allies, Daesitiates Breuci and other rebels
Commanders
Tiberius, Germanicus, Bato the Daesitiate, Bato the Breucian
Outcome
Roman suppression reshaped military and provincial organization.

Read the war in Wars →

See also Dalmatia, Pannonia

Read further Cassius Dio Roman History Book 55

Roman Parthian War 58-63 CE

58-63 CE · Armenia and Upper Mesopotamia

Rome and Parthia contested the Armenian monarchy through invasion, defeat and negotiated settlement.

Sides
Roman Empire and allies, Parthian Empire and allies
Commanders
Corbulo, Caesennius Paetus, Vologases I, Tiridates I
Outcome
Arsacid kingship in Armenia was reconciled with Roman investiture.

See also Armenia

Read further Tacitus Annals Book 15A

First Jewish Revolt

66-73/74 CE · Judaea

Revolt against Roman rule and local power structures became a major siege war.

Sides
Roman Empire and allies, Jewish rebel factions
Commanders
Vespasian, Titus, Josephus, Simon bar Giora, John of Gischala
Outcome
Jerusalem and Temple destroyed; final strongholds subsequently fell.

Read the war in Wars →

See also Jerusalem

Read further Josephus Jewish War Book VI

Civil wars of 68-69 CE

68-69 CE · Roman Empire

Provincial and military challenges ended Nero rule and produced successive rival emperors.

Sides
Galban Othonian Vitellian and Flavian forces
Commanders
Galba, Otho, Vitellius, Vespasian, Antonius Primus
Outcome
Flavian victory established Vespasian.

See also First Bedriacum

Read further Tacitus Histories Book 2A · Tacitus Histories Book 3A

Batavian revolt

69-70 CE · Rhine provinces

Civilis revolt combined auxiliary grievances and regional politics during Roman civil war.

Sides
Roman imperial armies, Civilis Batavian and allied forces
Commanders
Julius Civilis, Petillius Cerialis
Outcome
Roman authority restored through campaigning and negotiation.

Read the war in Wars →

See also Batavi

Read further Tacitus Histories Book 4A

Domitian Dacian War

85-89 CE · Lower Danube and Dacia

Dacian attacks and Roman counteroffensives led to a negotiated frontier settlement.

Sides
Roman Empire, Dacian kingdom
Commanders
Domitian, Cornelius Fuscus, Tettius Julianus, Decebalus
Outcome
Treaty left Decebalus in power with Roman support.

See also Decebalus, Dacian Wars of Trajan

Read further Cassius Dio Roman History Book 68

Dacian Wars of Trajan

101-102 and 105-106 CE · Dacia and Lower Danube

Two imperial invasions overturned Decebalus kingdom after an unstable initial settlement.

Sides
Roman Empire and allies, Decebalus Dacian kingdom and allies
Commanders
Trajan, Decebalus
Outcome
Most of the conquered heartland became Roman Dacia.

Read the war in Wars →

See also Dacia

Read further Cassius Dio Roman History Book 68

Kitos War

115-117 CE · Cyrenaica Egypt Cyprus and Mesopotamia

Violent Jewish revolts coincided with Trajan eastern war; theaters and local circumstances differed.

Sides
Roman Empire and local forces, Jewish rebel groups
Commanders
Lusius Quietus, Quintus Marcius Turbo, Regional rebel leaders
Outcome
Roman suppression devastated affected communities.

See also Cyprus, Judaea

Read further Cassius Dio Roman History Book 68

Bar Kokhba revolt

132-135 CE · Judaea

A new Jewish polity resisted Hadrian through fortified settlements and guerrilla warfare.

Sides
Roman Empire, Bar Kokhba rebel state
Commanders
Simon bar Kokhba, Sextus Julius Severus
Outcome
Revolt crushed with severe demographic and territorial consequences.

See also Judaea

Read further Cassius Dio Roman History Book 69

Roman Parthian War 161-166 CE

161-166 CE · Armenia and Mesopotamia

Roman counteroffensives followed Parthian gains in Armenia and Syria.

Sides
Roman Empire and allies, Parthian Empire and allies
Commanders
Lucius Verus, Statius Priscus, Avidius Cassius, Vologases IV
Outcome
Roman victories restored its Armenian position and captured eastern cities.

See also Avidius Cassius, Armenia

Read further Cassius Dio Roman History Book 71

Marcomannic Wars

166-180 CE · Danube and northern Italy

Repeated invasions and Roman counteroffensives involved Marcomanni, Quadi, Sarmatians and changing neighboring groups.

Sides
Roman Empire and allies, Marcomanni Quadi Iazyges and allies
Commanders
Marcus Aurelius, Lucius Verus, Roman and tribal commanders
Outcome
Campaigns ended under Commodus with negotiated arrangements.

Read the war in Wars →

See also Marcomanni, Quadi, Iazyges

Read further Cassius Dio Roman History Book 71

Archaeological Tactical Dossier; the Marcomannic Wars
SlideNotebookLMArchaeological Tactical Dossier; the Marcomannic Wars from FROM GOLD TO IRON AND RUST

Tetrarchic civil wars

306-324 CE · Roman Empire

Competing claims after the first tetrarchic succession destabilized collective government.

Sides
Successive Constantine Licinius Maxentius Maximinus Daia and other imperial coalitions
Commanders
Constantine I, Licinius, Maxentius, Maximinus Daia, Galerius
Outcome
Constantine defeated Licinius and became sole emperor.

See also Milvian Bridge, Chrysopolis

Read further Excerpta Valesiana First Part: Constantine

Magnentian civil war

350-353 CE · Gaul Balkans and Italy

Magnentius seizure of the western throne brought war with Constantius II.

Sides
Constantius II forces, Magnentius forces
Commanders
Constantius II, Magnentius, Decentius
Outcome
Constantius victory restored sole imperial rule.

See also Mursa Major

Read further Zosimus New History Book II

Gothic War 376-382 CE

376-382 CE · Lower Danube and Balkans

The admission and exploitation of Gothic groups escalated into revolt, imperial defeat and negotiated settlement.

Sides
Roman Empire, Gothic groups and associated allies
Commanders
Valens, Fritigern, Theodosius I
Outcome
Settlement in 382 followed years of war; its precise terms remain debated.

See also Adrianople, Goths

Read further Ammianus Marcellinus Res Gestae Book 31

Ostrogothic conquest of Italy

489-493 CE · Italy

Theodoric entered Italy and fought Odoacer for control.

Sides
Theodoric Ostrogothic coalition, Odoacer forces
Commanders
Theodoric the Great, Odoacer
Outcome
Theodoric gained Italy and killed Odoacer after negotiated surrender.

See also Ravenna

Read further Excerpta Valesiana

Gothic War in Italy

535-554 CE · Italy and western Balkans

Justinian armies fought successive Ostrogothic rulers for Italy in a destructive war of sieges and shifting control.

Sides
Eastern Roman Empire and allies, Ostrogothic kingdom and allies
Commanders
Belisarius, Narses, Vitiges, Totila, Teias
Outcome
Imperial victory restored rule over much of Italy, with costly disruption.

Read the war in Wars →

See also Rome, Taginae, Mons Lactarius

Read further Procopius Gothic Wars Books V and VI · Procopius Wars VIII 29-32: Taginae

Rome Reconquest: Belisarius' Gothic War
InfographicNotebookLMRome Reconquest: Belisarius' Gothic War

Lazic War

541-562 CE · Lazica and eastern Black Sea

Rome and Persia contested a strategically important kingdom through sieges, local alliances and diplomacy.

Sides
Eastern Roman Empire Lazica and allies, Sasanian Empire and allies
Commanders
Khosrow I, Gubazes II, Bessas, Mermeroes
Outcome
Peace left Lazica in the Roman sphere with financial arrangements.

Read the war in Wars →

See also Petra

Read further Procopius Persian Wars Books I and II · Khosrow I

Roman Persian War 572-591 CE

572-591 CE · Armenia and Mesopotamia

A new frontier war ended amid Sasanian civil conflict and Roman support for Khosrow II.

Sides
Eastern Roman Empire and allies, Sasanian Empire and shifting factions
Commanders
Maurice, Khosrow I, Hormizd IV, Khosrow II, Bahram Chobin
Outcome
Khosrow restoration brought a favorable Roman settlement.

See also Armenia, Khosrow II Parviz

Read further Khosrow I · Khosrow II by James Howard-Johnston

Last Roman Persian War

602-628 CE · Near East Anatolia Caucasus and Iran

Sasanian conquests of Roman provinces were reversed by Heraclius counteroffensives and a Persian political crisis.

Sides
Eastern Roman Empire and allies, Sasanian Empire and allies
Commanders
Heraclius, Khosrow II, Shahrbaraz, Shahin
Outcome
Peace restored occupied territories but left both states severely strained.

See also Nineveh

Read further Khosrow II by James Howard-Johnston

Battles 92

Lake Regillus traditional

traditionally 499 or 496 BCE · Latium

Traditional battle linked to the defeat of a Latin coalition and the Tarquin restoration attempt.

Sides
Rome, Latin coalition
Commanders
Aulus Postumius, Octavius Mamilius
Outcome
Roman victory in later tradition.

Read the war in Wars →

See also Latins

Read further Livy History of Rome Book 2

Cremera traditional

traditionally 477 BCE · Etruscan frontier

Roman tradition recounts the destruction of a Fabian force fighting Veii.

Sides
Fabian Roman force, Veii
Commanders
Fabian commanders, Veientine commanders
Outcome
Veientine victory; details are heavily traditional.

Read further Livy History of Rome Book 2

Siege of Veii traditional

traditionally 406-396 BCE · Etruria

Long siege narrative marks a major stage in Roman expansion beyond Latium.

Sides
Rome, Veii
Commanders
Marcus Furius Camillus, Veientine leaders
Outcome
Veii captured and its territory absorbed.

See also Etruscans

Read further Plutarch Life of Camillus

Region VII: Etruria
ExplainerNotebookLMRegion VII: Etruria from Pliny's Grand Tour

Allia and Gallic sack of Rome contested

390 BCE traditional; often dated 387/386 BCE · Rome and Latium

A Roman defeat exposed the city to a Senonian occupation and sack.

Sides
Rome, Senonian Gauls
Commanders
Roman commanders, Brennus
Outcome
Gallic victory; exact chronology and later rescue story are disputed.

Read the war in Wars →

See also Rome

Read further Plutarch Life of Camillus

Vesuvius traditional

340 BCE · Campania

Set-piece battle in the Latin War associated with the elder Decius Mus self-devotion.

Sides
Rome and Samnite allies, Latin and Campanian forces
Commanders
Manlius Torquatus, Decius Mus, Latin commanders
Outcome
Roman victory in the literary tradition.

See also Latin War, Devotio

In the volumes Book I · Chapter 2: The Latin Twilight and the Samnite Dawn · Book I · Chapter 3: The Long Samnite War · Book I · Chapter 4: The Coalition War: Sentinum and Its Antecedents · Book V · Chapter 5: Wars in the Shadow of the Settlement: Mithridates, Sertorius, Spartacus · Book VI · Chapter 8: The Flavian Consolidation and the Wars of Domitian

Read further Livy History of Rome Book 8

Caudine Forks

321 BCE · Samnium

Roman forces were trapped and compelled to surrender; it was a capitulation rather than a conventional pitched battle.

Sides
Rome, Samnites
Commanders
Titus Veturius Calvinus, Spurius Postumius Albinus, Gaius Pontius
Outcome
Samnite victory and disputed Roman repudiation of the settlement.

Read the war in Wars →

See also Second Samnite War

In the volumes Book I · Chapter 3: The Long Samnite War · Book I · Epilogue: Rome in 264 BC · Book V · Chapter 2: The Jugurthine War and the Rise of Marius

Read further Livy History of Rome Book 9

Sentinum

295 BCE · Umbria

Rome defeated the principal Samnite-Gallic field force of a larger anti-Roman coalition.

Sides
Rome and allies, Samnites and Senonian Gauls
Commanders
Fabius Rullianus, Decius Mus the younger, Gellius Egnatius
Outcome
Roman victory weakened the coalition.

Read the war in Wars →

See also Third Samnite War

In the volumes Book I · Chapter 4: The Coalition War: Sentinum and Its Antecedents · Book I · Chapter 3: The Long Samnite War · Book I · Proem · Book I · Chapter 2: The Latin Twilight and the Samnite Dawn · Book I · Chapter 5: The Pyrrhic War · Book I · Chapter 6: The Consolidation of Italy

Read further Livy History of Rome Book 10

Heraclea

280 BCE · Lucania

Pyrrhus first major Italian encounter with a Roman army demonstrated the cost of resisting his combined-arms force.

Sides
Rome, Pyrrhus and allies
Commanders
Publius Valerius Laevinus, Pyrrhus
Outcome
Epirote victory.

Read the war in Wars →

See also Pyrrhic War

In the volumes Book I · Chapter 5: The Pyrrhic War · Book I · Chapter 3: The Long Samnite War · Book I · Chapter 6: The Consolidation of Italy · Book I · Proem · Book II · Chapter 6: Cannae · Book IV · Chapter 6: The Achaean War and the Sack of Corinth

Read further Plutarch Life of Pyrrhus

Asculum

279 BCE · Apulia

A costly engagement between Pyrrhus coalition and Roman armies.

Sides
Rome and allies, Pyrrhus and allies
Commanders
Publius Decius Mus, Publius Sulpicius Saverrio, Pyrrhus
Outcome
Pyrrhic victory; losses constrained strategic exploitation.

Read the war in Wars →

See also Pyrrhic War

In the volumes Book I · Chapter 5: The Pyrrhic War · Book V · Chapter 4: The Social War and the Civil Wars of Marius and Sulla · Book I · Chapter 2: The Latin Twilight and the Samnite Dawn · Book I · Chapter 4: The Coalition War: Sentinum and Its Antecedents

Read further Plutarch Life of Pyrrhus

Agrigentum

262 BCE · Sicily

Roman siege and relief battle demonstrated commitment to a sustained Sicilian war.

Sides
Rome, Carthage
Commanders
Lucius Postumius Megellus, Quintus Mamilius Vitulus, Hanno, Hannibal Gisco
Outcome
Roman capture of the city.

See also First Punic War

Read further Polybius Histories Book 1

Casus Belli: The Tarquinian Restoration, slide 10
SlideNotebookLMCasus Belli: The Tarquinian Restoration, slide 10

Bagradas River 255 BCE

255 BCE · North Africa

Carthaginian cavalry and elephants overcame Regulus army after its advance into Africa.

Sides
Rome, Carthage and mercenaries
Commanders
Marcus Atilius Regulus, Xanthippus
Outcome
Carthaginian victory; Regulus captured.

See also First Punic War

Read further Polybius Histories Book 1

Telamon

225 BCE · Etruria

Two Roman consular armies caught a Gallic coalition during its withdrawal.

Sides
Rome and allies, Gallic coalition including Gaesatae
Commanders
Gaius Atilius Regulus, Lucius Aemilius Papus, Gallic kings
Outcome
Roman victory checked the invasion.

Read the war in Wars →

See also Gauls

In the volumes Book II · Chapter 3: The Interwar Years: Mercenary War, Sardinia, Gauls, and Illyrians · Book II · Chapter 4: The Coming of Hannibal: From Saguntum to the Alps

Read further Polybius Histories Book 2

Ticinus

218 BCE · Northern Italy

Cavalry engagement early in Hannibal Italian invasion.

Sides
Rome and allies, Carthage and allies
Commanders
Publius Cornelius Scipio the elder, Hannibal
Outcome
Carthaginian victory; Scipio wounded.

See also Second Punic War

In the volumes Book II · Chapter 5: The Year of Hannibal: Ticinus, Trebia, Trasimene, and the Fabian Strategy · Book III · Chapter 3: The Spanish Theater: The Elder Scipios and the Rise of the Younger · Book III · Chapter 7: Zama and the Peace · Book II · Chapter 4: The Coming of Hannibal: From Saguntum to the Alps · Book II · Epilogue: Rome in the Late Summer of 216 · Book III · Proem · Book III · Chapter 6: Scipio in Africa

Read further Polybius Histories Book 3

Trebia

218 BCE · Northern Italy

Hannibal defeated a Roman consular army after drawing it across a cold river.

Sides
Rome and allies, Carthage and allies
Commanders
Tiberius Sempronius Longus, Hannibal, Mago
Outcome
Carthaginian victory.

Read the war in Wars →

See also Second Punic War

In the volumes Book II · Chapter 5: The Year of Hannibal: Ticinus, Trebia, Trasimene, and the Fabian Strategy · Book III · Chapter 7: Zama and the Peace · Book I · Chapter 4: The Coalition War: Sentinum and Its Antecedents · Book II · Chapter 6: Cannae · Book II · Epilogue: Rome in the Late Summer of 216 · Book III · Proem

Read further Polybius Histories Book 3

THE TREBIA, DECEMBER 218 BC
PlateBook IITHE TREBIA, DECEMBER 218 BC

Cannae

216 BCE · Apulia

Hannibal coalition enveloped and destroyed much of a large Roman army.

Sides
Rome and Italian allies, Carthage and diverse allies
Commanders
Lucius Aemilius Paullus, Gaius Terentius Varro, Hannibal
Outcome
Carthaginian victory; Rome nevertheless continued the war.

Read the war in Wars →

See also Second Punic War

In the volumes Book II · Chapter 6: Cannae · Book II · Epilogue: Rome in the Late Summer of 216 · Book II · Proem · Book III · Chapter 1: The Aftermath of Cannae: Recovery, Capua, and the Macedonian Threat · Book III · Chapter 6: Scipio in Africa · Book III · Chapter 7: Zama and the Peace · Book III · Proem · Book VIII · Chapter 3: Adrianople and the Gothic Settlement and 11 more

Read further Livy History of Rome Book 22

Capture of New Carthage

209 BCE · Iberia

Scipio attacked the principal Carthaginian logistical and political base in Iberia.

Sides
Rome, Carthaginian garrison
Commanders
Scipio Africanus, Mago the garrison commander
Outcome
Roman capture yielded hostages and supplies.

See also Second Punic War, Carthago Nova

Read further Polybius Histories Book 11

Metaurus

207 BCE · Northern Italy

Roman commanders combined forces to intercept Hannibal brother before the Punic armies united.

Sides
Rome and allies, Hasdrubal Carthaginian army
Commanders
Marcus Livius Salinator, Gaius Claudius Nero, Hasdrubal Barca
Outcome
Roman victory; Hasdrubal killed.

Read the war in Wars →

See also Second Punic War

In the volumes Book III · Chapter 4: Hasdrubal's March and the Metaurus · Book II · Epilogue: Rome in the Late Summer of 216 · Book III · Proem · Book III · Chapter 5: Ilipa and the End of Carthaginian Spain · Book II · Proem · Book II · Chapter 4: The Coming of Hannibal: From Saguntum to the Alps

Read further Livy History of Rome Book 27

Ilipa

206 BCE · Southern Iberia

Scipio defeated the main Carthaginian field army in Spain.

Sides
Rome and allies, Carthage and allies
Commanders
Scipio Africanus, Hasdrubal Gisco, Mago Barca
Outcome
Roman victory ended Carthaginian dominance in Iberia.

Read the war in Wars →

See also Second Punic War

In the volumes Book III · Chapter 5: Ilipa and the End of Carthaginian Spain · Book III · Chapter 6: Scipio in Africa · Book III · Proem · Book IV · Chapter 2: The Syrian War: Antiochus, Thermopylae, and Magnesia · Book IV · Chapter 3: The Third Macedonian War: Aemilius Paullus and Pydna

Read further Polybius Histories Book 11

Zama

202 BCE · North Africa

Scipio Roman-Numidian coalition defeated Hannibal after his recall from Italy.

Sides
Rome and Numidia, Carthage and allies
Commanders
Scipio Africanus, Masinissa, Hannibal
Outcome
Roman victory led to the peace of 201 BCE.

Read the war in Wars →

See also Second Punic War

In the volumes Book III · Chapter 7: Zama and the Peace · Book III · Proem · Book IV · Chapter 5: The Third Punic War and the Destruction of Carthage · Book II · Epilogue: Rome in the Late Summer of 216 · Book IV · Proem · Book IV · Chapter 1: The Second Macedonian War: Flamininus and Cynoscephalae · Book V · Chapter 2: The Jugurthine War and the Rise of Marius · Book II · Proem and 6 more

Read further Polybius Histories Book 15

Cynoscephalae

197 BCE · Thessaly

Flamininus defeated Philip V in an encounter whose uneven deployment exposed the Macedonian army.

Sides
Rome and allies, Macedonia
Commanders
Titus Quinctius Flamininus, Philip V
Outcome
Roman victory.

Read the war in Wars →

See also Second Macedonian War

In the volumes Book IV · Chapter 3: The Third Macedonian War: Aemilius Paullus and Pydna · Book IV · Chapter 1: The Second Macedonian War: Flamininus and Cynoscephalae · Book IV · Chapter 2: The Syrian War: Antiochus, Thermopylae, and Magnesia

Read further Polybius Histories Book 18

Thermopylae 191 BCE

191 BCE · Central Greece

Roman forces outflanked Antiochus position at the pass.

Sides
Rome and allies, Seleucid army and allies
Commanders
Manius Acilius Glabrio, Cato the Elder, Antiochus III
Outcome
Seleucid withdrawal from mainland Greece.

See also Roman Seleucid War

Read further Livy History of Rome Book 36

Magnesia

190/189 BCE · Western Anatolia

Roman and Pergamene armies defeated Antiochus III large field army.

Sides
Rome and Pergamon, Seleucid kingdom and allies
Commanders
Lucius Cornelius Scipio, Eumenes II, Antiochus III
Outcome
Roman coalition victory led toward the Apamea settlement.

Read the war in Wars →

See also Roman Seleucid War

In the volumes Book IV · Chapter 2: The Syrian War: Antiochus, Thermopylae, and Magnesia · Book III · Chapter 7: Zama and the Peace · Book IV · Proem · Book IV · Chapter 3: The Third Macedonian War: Aemilius Paullus and Pydna

Read further Livy History of Rome Book 37

Magnesia (190 BC): Shattering the Hellenistic Ceiling
SlideNotebookLMMagnesia (190 BC): Shattering the Hellenistic Ceiling from The Roman Verdict

Pydna

168 BCE · Macedonia

Paullus defeated Perseus in the decisive battle of the Third Macedonian War.

Sides
Rome and allies, Macedonia
Commanders
Lucius Aemilius Paullus, Perseus
Outcome
Macedonian monarchy dismantled.

Read the war in Wars →

See also Third Macedonian War

In the volumes Book IV · Chapter 3: The Third Macedonian War: Aemilius Paullus and Pydna · Book IV · Proem · Book III · Epilogue: Rome in 201 BC · Book IV · Chapter 4: The Spanish Wars: Lusitanians, Celtiberians, Viriathus, and Numantia · Book IV · Chapter 6: The Achaean War and the Sack of Corinth · Book V · Chapter 1: The Gracchan Crisis: The Return of Political Violence

Read further Livy History of Rome Book 44

Arausio

105 BCE · Southern Gaul

Divided Roman commands suffered a major defeat against migrating northern coalitions.

Sides
Roman Republic, Cimbri Teutones and allies
Commanders
Quintus Servilius Caepio, Gnaeus Mallius Maximus, Coalition leaders
Outcome
Roman catastrophe intensified the command crisis.

Read the war in Wars →

See also Cimbrian War

In the volumes Book V · Chapter 3: The Northern Peril: The Cimbri, the Teutones, and the Marian Army · Book V · Chapter 4: The Social War and the Civil Wars of Marius and Sulla

Read further Plutarch Life of Marius

Vercellae

101 BCE · Northern Italy

Roman armies defeated the Cimbri after the previous year victory in Gaul.

Sides
Rome, Cimbri
Commanders
Gaius Marius, Quintus Lutatius Catulus, Boiorix
Outcome
Roman victory ended the principal invasion threat.

See also Cimbrian War

In the volumes Book V · Chapter 3: The Northern Peril: The Cimbri, the Teutones, and the Marian Army · Book V · Chapter 4: The Social War and the Civil Wars of Marius and Sulla · Book VI · Chapter 4: Britain: Conquest and Revolt

Read further Plutarch Life of Marius

Chaeronea 86 BCE

86 BCE · Boeotia

Sulla defeated the Pontic field army in Greece.

Sides
Rome, Pontic kingdom and allies
Commanders
Lucius Cornelius Sulla, Archelaus
Outcome
Roman victory.

See also First Mithridatic War

Read further Plutarch Life of Sulla

Chaeronea, 86 BC
InfographicROMA archiveChaeronea, 86 BC

Colline Gate

82 BCE · Rome

Sulla army defeated a coalition including Samnite forces at Rome northern defenses.

Sides
Sullan forces, Samnite and anti-Sullan coalition
Commanders
Sulla, Crassus, Pontius Telesinus
Outcome
Sullan victory ended major resistance in Italy.

Read the war in Wars →

See also Sullan civil wars

In the volumes Book III · Chapter 2: The Sicilian Theater: Syracuse and the Recovery of the Italian South · Book V · Chapter 4: The Social War and the Civil Wars of Marius and Sulla · Book V · Chapter 5: Wars in the Shadow of the Settlement: Mithridates, Sertorius, Spartacus

Read further Appian Civil Wars Book 1

Battle against Ariovistus

58 BCE · Alsace region

Caesar confronted Ariovistus coalition east of his earlier Gallic operations.

Sides
Caesar Roman army, Ariovistus and Germanic coalition
Commanders
Julius Caesar, Ariovistus
Outcome
Roman victory drove the opposing force toward the Rhine.

See also Gallic War, Suebi

Read further Caesar Gallic War Book 1

Sabis

57 BCE · Belgic Gaul

A close battle followed a sudden attack on Caesar army during camp construction.

Sides
Caesar Roman army, Nervii and allies
Commanders
Julius Caesar, Titus Labienus, Nervian leaders
Outcome
Roman victory after serious danger.

See also Gallic War, Nervii

Read further Caesar Gallic War Book 2

The Sabis, 57 BC
InfographicROMA archiveThe Sabis, 57 BC

Carrhae

53 BCE · Upper Mesopotamia

Parthian mounted forces defeated Crassus infantry-centered invasion army.

Sides
Rome and allies, Parthian Empire
Commanders
Marcus Licinius Crassus, Surena
Outcome
Parthian victory; Crassus died during the aftermath.

Read the war in Wars →

In the volumes Book V · Proem · Book V · Chapter 7: Caesar in Gaul · Book V · Chapter 8: The Civil Wars and the End of the Republic · Book VI · Chapter 1: The Augustan Conquests · Book VI · Chapter 2: The Great Illyrian Revolt and the Varian Disaster · Book VI · Chapter 8: The Flavian Consolidation and the Wars of Domitian · Book VII · Chapter 6: The Auction and the Severan Reconstruction · Book VIII · Chapter 1: The Tetrarchy and the Wars of Constantine

Read further Plutarch Life of Crassus

Alesia

52 BCE · Gaul

Roman siegeworks faced both the enclosed Gallic army and an external relief force.

Sides
Caesar Roman army and allies, Gallic coalition
Commanders
Julius Caesar, Vercingetorix, Relief commanders
Outcome
Roman victory and Vercingetorix surrender.

Read the war in Wars →

See also Gallic War

In the volumes Book V · Chapter 7: Caesar in Gaul · Book IV · Chapter 4: The Spanish Wars: Lusitanians, Celtiberians, Viriathus, and Numantia · Book V · Chapter 8: The Civil Wars and the End of the Republic · Book VI · Chapter 6: The Jewish War

Read further Caesar Gallic War Book 7

Mutina

43 BCE · Northern Italy

Consular and Octavian forces fought Antony during the struggle over Decimus Brutus command.

Sides
Senatorial consular armies and Octavian, Antony forces
Commanders
Aulus Hirtius, Gaius Vibius Pansa, Octavian, Mark Antony
Outcome
Antony withdrew; both consuls died and the coalition fractured.

Read the war in Wars →

See also Second Triumvirate

In the volumes Book V · Chapter 5: Wars in the Shadow of the Settlement: Mithridates, Sertorius, Spartacus · Book V · Chapter 8: The Civil Wars and the End of the Republic

Read further Appian Civil Wars Book 3

The War of Mutina (April 43 BCE)
SlideNotebookLMThe War of Mutina (April 43 BCE) from Augustus: A Military Chronology, 44 BC – AD 14

Actium

31 BCE · Western Greece

Naval battle and subsequent collapse of Antony position decided the final republican civil war.

Sides
Octavian coalition, Antony and Cleopatra coalition
Commanders
Agrippa, Octavian, Mark Antony, Cleopatra VII
Outcome
Octavian victory; conquest of Egypt followed in 30 BCE.

Read the war in Wars →

See also Final war of the Republic

In the volumes Book V · Epilogue: Rome in 31/30 BC · Book V · Proem · Book VI · Proem · Book IV · Epilogue: Rome in 146 BC · Book V · Chapter 8: The Civil Wars and the End of the Republic

Read further Plutarch Life of Antony

Teutoburg Forest

9 CE · Germania

Arminius coalition attacked Varus marching army over several days.

Sides
Roman Empire, Germanic coalition
Commanders
Publius Quinctilius Varus, Arminius
Outcome
Roman defeat destroyed legions XVII XVIII and XIX.

See also Arminius

Read further Cassius Dio Roman History Book 56

Medway contested

43 CE · Southeastern Britain

River fighting during the Claudian invasion opened the advance toward the Thames.

Sides
Roman invasion army and allies, British coalition
Commanders
Aulus Plautius, British rulers including Caratacus and Togodumnus
Outcome
Roman advance; exact battlefield identification remains uncertain.

In the volumes Book VI · Chapter 4: Britain: Conquest and Revolt · Book VI · Chapter 7: The Year of the Four Emperors and the Batavian Revolt

Read further Cassius Dio Roman History Book 60

MEDWAY DAY Two & THE PAUSE AT THE THAMES
SlideNotebookLMMEDWAY DAY Two & THE PAUSE AT THE THAMES from Claudius War and Empire

Final battle of Boudica revolt contested

60/61 CE · Britain location uncertain

Suetonius selected a constrained position against the rebel army; the traditional Watling Street label is not a secure site identification.

Sides
Roman forces, Iceni-led coalition
Commanders
Suetonius Paulinus, Boudica
Outcome
Roman victory ended the principal revolt.

Read the war in Wars →

Read further Tacitus Annals Book 14B

First Bedriacum

69 CE · Northern Italy

Vitellian armies defeated forces loyal to Otho in the succession war.

Sides
Vitellians, Othonians
Commanders
Aulus Caecina Alienus, Fabius Valens, Othonian commanders
Outcome
Otho died by suicide; Vitellius gained recognition.

See also Year of the Four Emperors

Read further Tacitus Histories Book 2A

Second Bedriacum and Cremona

69 CE · Northern Italy

Flavian forces defeated Vitellian armies; Cremona was then violently sacked.

Sides
Flavians, Vitellians
Commanders
Antonius Primus, Vitellian commanders
Outcome
Flavian victory opened the road to Rome.

See also Year of the Four Emperors

Read further Tacitus Histories Book 3A

Siege of Jerusalem

70 CE · Judaea

Roman assault took the city after factional warfare and extreme siege conditions.

Sides
Roman Empire and allies, Jewish rebel factions
Commanders
Titus, Simon bar Giora, John of Gischala
Outcome
City and Second Temple destroyed.

See also First Jewish Revolt

Read further Josephus Jewish War Book VI

Mons Graupius contested

83 or 84 CE · Northern Britain

Agricola defeated a Caledonian coalition in Tacitus account; site and date remain debated.

Sides
Roman Empire and auxiliaries, Caledonian coalition
Commanders
Agricola, Calgacus in Tacitus narrative
Outcome
Roman victory without permanent conquest of all northern Britain.

Read the war in Wars →

See also Britannia, Caledonians

Read further Tacitus Agricola

Tapae 101 CE

101 CE · Dacia

Trajan army defeated Dacian forces near a strategic approach into the kingdom.

Sides
Roman Empire and allies, Dacian kingdom
Commanders
Trajan, Decebalus
Outcome
Roman advance during the first Trajanic Dacian War.

See also Dacian Wars of Trajan

Read further Cassius Dio Roman History Book 68

Issus 194 CE

194 CE · Cilicia

Severan forces defeated Pescennius Niger in the decisive eastern civil-war battle.

Sides
Severan forces, Niger forces
Commanders
Publius Cornelius Anullinus, Pescennius Niger
Outcome
Niger fled and was killed.

See also Severan civil wars

Read further Cassius Dio Roman History Book 75

Lugdunum 197 CE

197 CE · Gaul

Severus defeated the army of his former Caesar, Clodius Albinus.

Sides
Severan forces, Albinus forces
Commanders
Septimius Severus, Clodius Albinus
Outcome
Severus secured the western provinces.

See also Severan civil wars

Read further Cassius Dio Roman History Book 76

Barbalissos contested

252/253 CE · Euphrates frontier

Shapur inscription reports a major victory over a Roman army; exact campaign chronology is disputed.

Sides
Roman Empire, Sasanian Empire
Commanders
Roman commanders uncertain, Shapur I
Outcome
Sasanian victory preceded devastation in Syria.

See also Sasanian Empire

Read further Shapur I History by A Shapur Shahbazi

Edessa 260 CE

260 CE · Upper Mesopotamia

Shapur defeated Valerian army and captured the emperor.

Sides
Roman Empire, Sasanian Empire
Commanders
Valerian, Shapur I
Outcome
Sasanian victory; circumstances of capture differ between traditions.

See also Shapur I

Read further Shapur I History by A Shapur Shahbazi

Mursa Major

351 CE · Pannonia

Constantius II defeated Magnentius in a costly civil-war battle.

Sides
Constantius II forces, Magnentius forces
Commanders
Constantius II, Magnentius
Outcome
Imperial victory weakened the usurper without ending the war immediately.

See also Magnentian civil war

Read further Zosimus New History Book II

The Catastrophe at Mursa
ExplainerNotebookLMThe Catastrophe at Mursa from Rome Marble and Shadow

Siege of Amida

359 CE · Upper Mesopotamia

Shapur army captured the fortified city after sustained resistance witnessed by Ammianus.

Sides
Roman garrison and civilians, Sasanian army and allies
Commanders
Ursicinus and garrison officers, Shapur II, Grumbates
Outcome
Sasanian capture with heavy losses and devastation.

See also Shapur II

Read further Ammianus Marcellinus Res Gestae Book 19

Ctesiphon 363 CE

363 CE · Lower Mesopotamia

Julian defeated forces outside the capital but did not capture the city; his subsequent retreat became disastrous.

Sides
Roman Empire, Sasanian Empire
Commanders
Julian, Sasanian commanders
Outcome
Roman tactical success did not secure the campaign objective.

See also Julian Persian campaign

Read further Ammianus Marcellinus Res Gestae Book 24

Adrianople

378 CE · Thrace

Valens attacked the Gothic coalition before western reinforcements arrived.

Sides
Roman Empire, Gothic coalition and allies
Commanders
Valens, Fritigern, Alatheus, Saphrax
Outcome
Roman defeat and death of Valens.

Read the war in Wars →

See also Gothic War 376-382 CE

In the volumes Book VII · Epilogue: The World-State at 284 · Book VIII · Chapter 3: Adrianople and the Gothic Settlement · Book VIII · Chapter 1: The Tetrarchy and the Wars of Constantine · Book VIII · Epilogue: The Audit of the Eight Hundred Years

Read further Ammianus Marcellinus Res Gestae Book 31

Faesulae: containing Radagaisus’ army
MapWarsFaesulae: containing Radagaisus’ army
Gelimer's Trap at Ad Decimum
SlideNotebookLMGelimer's Trap at Ad Decimum from Strategy Luck and Carthage

Siege of Rome 537-538 CE

537-538 CE · Italy

Vitiges besieged Belisarius garrison; supply, walls, sorties and waterways shaped the struggle.

Sides
Eastern Roman garrison, Ostrogothic kingdom
Commanders
Belisarius, Vitiges
Outcome
Gothic withdrawal preserved imperial possession temporarily.

See also Gothic War in Italy

Read further Procopius Gothic Wars Books V and VI

Siege of Constantinople 626 CE

626 CE · Constantinople

Avar-Slav forces attacked the city while a Persian army operated across the Bosporus.

Sides
Eastern Romans, Avar Slavic and Sasanian forces
Commanders
Bonos, Patriarch Sergius, Avar khagan, Shahrbaraz
Outcome
Defense held and the allied attack failed.

See also Last Roman Persian War

Read further Khosrow II by James Howard-Johnston

Nineveh

627 CE · Northern Mesopotamia

Heraclius defeated a Persian field army during a deep winter campaign.

Sides
Eastern Roman Empire, Sasanian Empire
Commanders
Heraclius, Rhahzadh
Outcome
Roman victory intensified the crisis ending Khosrow II rule.

See also Last Roman Persian War

Read further Khosrow II by James Howard-Johnston

Yarmouk

636 CE · Southern Syria

A major imperial army was defeated during the early Muslim conquest of the Levant.

Sides
Eastern Roman coalition, Rashidun Caliphate
Commanders
Vahan and other imperial commanders, Khalid ibn al Walid and Muslim commanders
Outcome
Caliphal victory accelerated loss of Syria; narrative details remain disputed.

See also Syria

Read further Al Baladhuri on Yarmuk

Manzikert

1071 CE · Eastern Anatolia

Romanos IV was defeated and captured by Alp Arslan; subsequent civil wars magnified the consequences.

Sides
Eastern Roman Empire, Seljuk Empire
Commanders
Romanos IV, Alp Arslan
Outcome
Seljuk victory; later loss of Anatolia was a process rather than an instantaneous result.

Read further Peter Frankopan Manzikert 1071

Capture of Constantinople 1204 CE

1204 CE · Constantinople

Fourth Crusade forces assaulted and plundered the imperial capital.

Sides
Crusader and Venetian coalition, Eastern Roman defenders
Commanders
Boniface of Montferrat, Baldwin of Flanders, Enrico Dandolo, Alexios V
Outcome
Latin Empire established; Roman successor states continued.

Read further Fordham Byzantine source collection

Fall of Constantinople 1453 CE

1453 CE · Constantinople

Ottoman siege ended the rule of the last Constantinopolitan Roman emperor.

Sides
Ottoman Empire, Constantinople and allied defenders
Commanders
Mehmed II, Constantine XI, Giovanni Giustiniani
Outcome
Ottoman conquest; other Roman successor territories survived briefly.

Read further Fordham Byzantine source collection

Campaigns 9

Pompey campaign against the pirates

67 BCE · Mediterranean

Extraordinary command coordinated regional fleets and land forces against maritime raiding networks.

Sides
Roman Republic and cooperating states, Pirate communities and fleets
Commanders
Pompey and subordinate commanders
Outcome
Rapid suppression secured routes; resettlement accompanied military action.

Read further Plutarch Life of Pompey

Caesar expeditions to Britain

55 and 54 BCE · Channel and southern Britain

Two expeditions projected Roman power beyond Gaul without establishing a province.

Sides
Caesar Roman forces, British coalitions
Commanders
Julius Caesar, Cassivellaunus
Outcome
Agreements and hostages followed; permanent conquest began in 43 CE.

See also Britannia

Read further Caesar Gallic War Book 4 · Caesar Gallic War Book 5

Claudian conquest of Britain

43 CE onward · Britain

An invasion force established a provincial foothold and expanded through decades of campaigning and negotiation.

Sides
Roman Empire and allies, British polities
Commanders
Aulus Plautius, Claudius, British rulers
Outcome
Provincial rule established in part of Britain, never all of the island.

See also Britannia

Read further Cassius Dio Roman History Book 60

Trajan Parthian campaign

113-117 CE · Armenia and Mesopotamia

Trajan annexed Armenia and advanced to Ctesiphon and the Persian Gulf amid resistance and revolts.

Sides
Roman Empire and allies, Parthian Empire and allies
Commanders
Trajan, Lusius Quietus, Parthian rulers and commanders
Outcome
Hadrian relinquished most new eastern annexations.

See also Armenia, Mesopotamia

Read further Cassius Dio Roman History Book 68

Optimus Princeps: Trajan's Dacian and Eastern Campaigns, slide 13
SlideNotebookLMOptimus Princeps: Trajan's Dacian and Eastern Campaigns, slide 13

Severus Parthian campaigns

195 and 197-199 CE · Upper Mesopotamia

Severus campaigned east after civil-war victories and captured Ctesiphon; Hatra resisted.

Sides
Roman Empire and allies, Parthian Empire and local powers
Commanders
Septimius Severus, Parthian and local commanders
Outcome
Roman provincial organization expanded in northern Mesopotamia.

See also Mesopotamia, Ctesiphon

Read further Cassius Dio Roman History Book 75 · Cassius Dio Roman History Book 76

Aurelian reunification campaigns

270-274 CE · Balkans Italy eastern provinces and Gaul

Aurelian fought invasions and restored provinces held by the Palmyrene and Gallic regimes.

Sides
Aurelian imperial forces, Invading forces Palmyrene and Gallic regimes
Commanders
Aurelian, Zenobia, Zabdas, Tetricus
Outcome
A single imperial government recovered much of the divided empire.

See also Immae, Emesa, Palmyra

Read further Zosimus New History

Alaric Italian campaigns and sack of Rome

401-410 CE · Italy

Repeated invasions, sieges and negotiations sought support, office and settlement within imperial politics.

Sides
Alaric Gothic forces, Western imperial and rival forces
Commanders
Alaric I, Stilicho, Honorius officials
Outcome
Rome sacked in 410 CE; this did not end the western state immediately.

See also Rome, Alaric I

Read further Claudian Gothic War and Stilicho poems · Zosimus New History Book V · Orosius Histories against the Pagans Book VII

Heraclius counteroffensives

622-628 CE · Anatolia Caucasus and Mesopotamia

Mobile campaigns and alliances threatened the Sasanian heartland while Constantinople survived siege.

Sides
Eastern Roman Empire and allies, Sasanian Empire
Commanders
Heraclius, Khosrow II, Sasanian commanders
Outcome
Persian regime change led to restoration of Roman territories.

See also Last Roman Persian War

Read further Khosrow II by James Howard-Johnston