 He used the prestige of the Soviet victory at the Battle of Stalingrad to get his way.Roosevelt attempted to cope with Stalin's onslaught of demands, but was able to do little except appease Stalin.Churchill argued for the invasion of Italy in 1943, then Overlord in 1944, on the basis that Overlord was physically impossible in 1943 due to lack of shipping and it would be unthinkable to do anything major until it could be launched.