Powerful bombs--who's destructive power is created by nuclear fission--developed by the United States during World War II. They dropped bombs on the Japanese cities of Hiroshima and Nagasaki destroying both cities, forcing the Japanese surrender. During the Cold War, only the US and the USSR had these weapons, making them the most powerful countries in the world. Today, nuclear proliferation--the acquisition of nuclear weapons by new countries--is a major concern.

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Powerful bombs--who's destructive power is created by nuclear fission--developed by the United States during World War II. They dropped bombs on the Japanese cities of Hiroshima and Nagasaki destroying both cities, forcing the Japanese surrender. During the Cold War, only the US and the USSR had these weapons, making them the most powerful countries in the world. Today, nuclear proliferation--the acquisition of nuclear weapons by new countries--is a major concern.

Louis XVI
Mao Zedong
Atomic Bomb
Pol Pot and the Khmer Rouge