Nyorai kupfuurira kweiyi ndima - Muna 1800, Loison akatumirwa kuArmy of the Reserve kuti atungamire boka revanhu 5,300 uye akayambuka Great St Bernard Pass naNapoleon. Akakuvadzwa achitungamirira kurwisa kwakakundikana paFort Bard musi wa25 Chivabvu 1800. Achipora nokukurumidza, akatungamirira boka rake muGuillaume Philibert Duhesme's corps mukudzorera Josef Philipp Vukassovich's command. Akapotsa Hondo yeMarengo
nokuti varume vake vakanga vakabatikana kubata Milan neCremona, vachidzingirira vaAustria kumabvazuva.