During the final stages of WW II in 1945, the Allies of WW II conducted two atomic bombings against the cities of Hiroshima and Nagasaki in Japan. These two events are the only use of nuclear weapons to date. This 1946 film shows the effects of the atomic bomb on the people and cities of Hiroshima and Nagasaki, Japan. That was end of end of ww2. But the beginning of Cold War.