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During the Cold War (when US want the world to be capitalist while Russia wanted it to be communist) in 1950, US President Harry S. Truman authorized the invention of a bomb stronger than the atomic bomb (A-bomb), which both US and Russia already had in their arsenals, just in case if there would be a World War III when World War II just ended.

The US tested its first H-bomb (hydrogen bomb) in 1952, which was thousands of times stronger than the A-bomb, then the Soviet Union (Russia) tested their own H-bomb in 1953.

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13y ago

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