When Suvorov invaded northern Italy in March 1799 with an Austro-Russian army, and was undoing the conquests of Bonaparte and defeated Moreau at Cassano and San Giuliano. In response Macdonald moved northwards in command of the "Armée de Naples". With 36,000 men, he attacked Suvorov's 22,000 men at the Trebbia. After three days' fighting, receiving no help from Moreau, he was utterly defeated and retreated to Genoa. Later, he was made governor of Versailles and acquiesced, even if he did not participate, in the events of the 18 Brumaire.