Although he was not an 'army' man, and eventually left the army when he could, to pursue his political career.
He supported Sulla and the optimates in the civil war against Marius.
Which would be very successful
Fought with Sulla to bring down the Marians, eventually making Sulla dictator of Rome.
Sulla sent Pompey to fight Marians in Sicily, and he was victorious.
After defeating Sicily, he went on to the Roman province of Africa, and added it to Rome's empire.
Famous trial defending Roscius for the crime of killing his father, of which there was no evidence.
Going up in the political ladder
In 3 months!!
With Crassus (awks)
His first prosecution (ungentlemanly)