Answer:
Ten days later, the Allies issued the Potsdam Declaration, demanding the “unconditional surrender of all the Japanese armed forces.” Failure to comply would mean “the inevitable and complete destruction of the Japanese armed forces and just as inevitable the utter devastation of the Japanese homeland.
It was called isolationism :D
<span>The policy became one of containing the spread of communism. That policy was the reason for about every foreign policy decision made. Examples would be Korean War, Vietnam War, maintenance of large military presence in both Germany and Korea.
hope this helps</span>
