Whakaotihia te rerenga e whai ake nei: I te tau 1800, i tukuna a Loison ki te ope taua o te Reserve ki te whakahau i tetahi wehenga 5,300-tangata ka whiti i te Great St Bernard Pass me Napoleon. I whara ia e arahi ana i te whakaekenga kore ki Fort Bard i te 25 o Mei 1800. I te tere o te whakaora, i arahi ia i tana wehenga i roto i nga roopu a Guillaume Philibert Duhesme ki te whakahoki i te whakahau a Josef Philipp Vukassovich. I ngaro ia i te
Ko te Pakanga o Marengo na te mea i pukumahi ana ana tangata ki te hopu i a Milan me Cremona, i a raatau e whai ana i nga Austrians ki te rawhiti.