Meanwhile, an Austro-Russian army under Alexander Suvorov had cleared most of Italy of its French occupiers. In the Battle of Novi on 15 August 1799, the Allies suffered 8,200 casualties, mostly Austrian, but chased the French army back into its last narrow slice of Italian territory near Genoa. During this time, the Austrians were very successful in reducing the French-held fortresses in Italy. By 11 September, the only Piedmont fortress that remained in French hands was Cuneo.