HistoryData
war-45

Ancient Roman battle

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A Mauretanian garrison's surprise sally repulsed Pompey the Younger's coastal raid, indirectly triggering Mauretanian intervention that reshaped the final phase of Caesar's Civil War.

Quick Facts

Year
-45
Category
war

Key Facts

Date
46 BC
Pompey's force size
approximately 2,000 troops
Outcome for Pompey
Routed, fled to the Balearic Islands
Garrison tactic
Sudden sally after allowing close approach
Context
Caesar's Civil War, anti-Caesarian phase in Africa
Subsequent Pompeian fate
Many captured or killed after Battle of Thapsus

Location

Ascurum, Mauretania

Cause → Event → Consequence

Cause

Following defeats in Greece and Africa, surviving Pompeians regrouped at Utica. Cato's rebuke of Pompey the Younger for inaction spurred him to prove himself. Viewing Mauretania as a threat to Pompeian operations in the region, Pompey decided to attack its coast with a small expeditionary force of around 2,000 men.

Event

Pompey the Younger landed on the Mauretanian coast and advanced toward the town of Ascurum. The garrison allowed his force to approach the walls before launching a sudden, aggressive sally. Caught by surprise and possibly outnumbered, Pompey's men broke and fled back to their ships, suffering a sharp defeat against the local defenders.

Consequence

Shamed by the defeat, Pompey fled to the Balearic Islands rather than return to Utica. The battle galvanized Mauretania to ally with Publius Sittius and invade Numidia. After Caesar's victory at Thapsus, the Mauretanians blocked the westward escape of fleeing Pompeians, capturing or killing many. Pompey the Younger eventually reached Spain and died at the Battle of Munda.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Mauretania

Side B

1 belligerent

Pompeians (Pompey the Younger)
Peak Mobilized Forces~2K
Forces vs Casualties ratio
0Mobilized
Key Commanders

Pompey the Younger.

Outcome
Mauretanian victory; Pompeian force routed and fled to the Balearic Islands

Timeline Context

Timeline around -45-45-48-47-46-44-43-4246 BCE battle between the Republican forces of the Optimates and forces loyal to Julius CaesarBattle in Caesar's Civil Warbattle-of-ascurum--45