Define U.S. isolationism and discuss specific foreign policies of the 1920s, ‘30s, ‘40 and ‘41, showing how U.S. policy began within the context of traditional isolationism but increasingly became more enmeshed in overseas involvement, culminating in U.S. entry into World War 2 with Japan’s attack on Pearl Harbor in 1941.

Finally, list and describe two major contributions the U.S. made to victory by the Allies in World War 2, after its entry in 1941, explaining why each was significant in the wars outcome. Do not be superficial – show effects on outcome of war