Battle of the Somme, 1 July-late Nov 1916, during the First World War, saw British, Imperial, and French troops hammering German defence lines north of the Somme River in one of the most futile and bloody battles in history. The 1st Newfoundland Regiment was virtually wiped out at Beaumont Hamel on the first day of the battle. The Canadian Corps entered the battle on August 30, and during its attacks in September was supported by the first tanks used in action on the Western Front. The machine guns, barbed wire, trenches and massive use of artillery resulted in hard fighting and heavy casualties, especially in the capture of Regina Trench, Courcelette, Thiepval and Ancre Heights. Rain, snow, and sleet brought the battle to an end. After 5 months' fighting the Allies had penetrated about 13 km along a 35 km front. Allied losses were estimated at 623 907, of whom 24 713 were Canadians and Newfoundlanders. German losses were estimated at 660 000.