The battleline opened against Germany on 6 June 1944 by the Allies (Britain and the USA). Following Germany's invasion of Russia in June 1941 (the `first front'), Russian leader Joseph Stalin asked Britain to invade the European mainland, to relieve pressure on the Red Army. An Anglo-American invasion fleet landed on the Normandy beaches and, after overcoming fierce German resistance, Paris was liberated by the Allied forces 25 Aug 1944.