Ambition, conquest and civil war in the life that helped end the Roman Republic.
By thehistoricalfrontier editorial team · Published 20 July 2026 · Updated 26 July 2026 · 5 min read
The Tusculum portrait, generally identified as a lifetime portrait of Julius Caesar. Creator: Unknown Roman sculptor; photograph by Carole Raddato. Source: Museo di Antichità, Turin via Wikimedia Commons. Licence: CC BY-SA 2.0.
Caesar rose through the competitive politics of the late Republic and formed an informal alliance with Pompey and Crassus. His conquest of Gaul gave him wealth, soldiers and political leverage.
Crossing the Rubicon in 49 BC began civil war. Caesar defeated Pompey's forces and accumulated extraordinary offices and honours after returning to Rome.
His assassination on the Ides of March 44 BC did not restore the old Republic. Further civil wars led eventually to the rule of his adopted heir Octavian, later Augustus.
Why It Matters
Caesar's career exposes how republican institutions could be hollowed out by violence, patronage and concentrations of military power.
