 Reinforced with forces from the Rhine front, Bonaparte was determined to drive the Austrian army from northeast Italy.His offensive began in March and consisted of a secondary drive through the County of Tyrol by Barthélemy Catherine Joubert's left wing and an eastward thrust by Bonaparte's main army.The main French army soon drove the archduke's forces into headlong retreat while Joubert battled with Wilhelm Lothar Maria von Kerpen in the Tyrol.