Cicero’s attacks on Antony were only partially successful and were overtaken by events on the battlefield. The Senate agreed with most (but not all) of Cicero's proposals, including declaring Antony an enemy of the state. Cicero convinced the two consuls for 43 BC, Aulus Hirtius and Gaius Vibius Pansa, to lead the Senate's armies (with an allied force commanded by Octavian) against Antony. However, Pansa was mortally wounded at the Battle of Forum Gallorum, and Hirtius died at the Battle of Mutina a few days later. Both battles had been victories for the Senate army, but the deaths of its commanders left the force leaderless. The senior magistrate on the scene was Decimus Brutus (the propraetor of cisalpine Gaul), who the Senate attempted to appoint in command, but Octavian refused to work with him because he had been one of Julius Caesar's assassins. Most of the troops switched their loyalty to Octavian. With Cicero and the Senate attempting to bypass him and now in command of a large army, Octavian decided to reconcile with Antony. Antony and Octavian allied with each other and Marcus Aemilius Lepidus to form the second triumvirate, in opposition to Caesar's assassins. With the triumvirate controlling almost all of the military forces, Cicero and the Senate were left defenceless.