Did the entrance of the United States into World War II, make the defeat of Germany, Japan and Italy inevitable?

Inevitable, no. Very likely, yes. Many things could have happened in the war that would have
shifted the tide of the war in a different direction, though outright Axis victory seems very
unlikely. It was hardly preordained, for example, that the Allied landing at Normandy would come
off successfully, or that the German advance would be...