In the longest battle of the war, the German plan to wear down the French army and break civilian spirit failed. Casualties were huge: 355,000 German and 400,000 French.Russian General Alexei Brusilov attacked the southern Austrian defences, advancing the front more than 60 miles and inflicting a million casualties.The battle of Somme-Total casualties: 1,088,907 (both sides)Just a few of the casulties, where did anybody ever get the people to fight WWII?, the Germans were ready for the attack at Chemin des Dames and inflicted 100,000 casualties on the first day.