Perusine War

The Perusine War (also Perusian or Perusinian War, or the War of Perusia) was a civil war of the Roman Republic, which lasted from 41 to 40 BC. It was fought by Lucius Antonius (the younger brother of Mark Antony) and the Umbrians of Perusia in support of Mark Antony against his political enemy Octavian (the future Emperor Augustus).