Bithynia et Pontus
In 45 BC, Crispus was made Proconsular governor of Bithynia et Pontus. In the following year, he took three legions to Syria, to provide aid to the Caesarean governor Lucius Staius Murcus who was fighting the pro-Pompeian former governor Quintus Caecilius Bassus. Together, they cornered Bassus at Apamea, and were acclaimed "Imperator" by their troops by early 43 BC.