On 10 June, Mussolini declared war on France and Britain, although well aware of his country’s military and material weakness. He was determined not to miss his chance to profit territorially before peace came. But the Italian offensive in the Alps, of which the Germans had not been informed, proved disastrous. The French lost just over 200 men. The Italians suffered 6,000 casualties, including more than 2,000 cases of severe frostbite.