However, the major event of his consulship was the revolt of Spartacus and the eruption of the Third Servile War. Having won a number of victories against ill-prepared Roman forces, the Senate now recognised Spartacus as a serious threat and sent both the consuls to confront the slave armies at the head of four legions. Initially successful, Gellius defeated Crixus and 30,000 rebel slaves at Mount Garganus near Apulia, then moved northwards behind Spartacus's forces which were moving north. With Clodianus barring Spartacus in the north, they hoped to catch the rebels between the two armies. Spartacus' slave army destroyed Clodianus' legions, and then turned and defeated the oncoming legions of Gellius. Gathering their shattered forces, both consuls gave chase but were once again defeated at a battle near Picenum.