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Nuclear Bomb
The U.S. was the first to develop the nuclear weapons through the Manhattan Project during WWII. The U.S. ended the war with Japan by dropping nuclear bombs on the cities of Hiroshima and Nagasaki. -
Start of the Arms Race
The Soveit Union successfully tested its first atomic bomb. The world was shocked. The race was on. -
Arms Race Continues
The U.S. detonated the first hydrogen bomb. This was an even more powerful version of the nuclear bomb. -
Arms Race Continues... Again.
The Soviets followed up by exploding their first hydrogen bomb. -
ICBMs
In the 1950's both countries worked on developing intercontinental Ballistic Missiles (ICBMs). These missiles could be launched from long range, as far as 3,500 miles. -
Defense
During the 1950's as both sides continued to develop new and more powerful weapons, the fear of what would happen if war broke out spread throughout the world. Militaries began to work on defenses such as large radar systems.
At the same time people built bomb shelters and underground bunkers where they could hide in the case of a nuclear attack. -
Arms Reduction
By the 1970's both countries realized something had to be done about the Arms Race. The agreed to reduce arms through the SALT I and SALT II agreements. SALT (Strategic Arms Limitation Tasks) -
End of the Arms Race
The Arms Race came to an end with the collapse of the Soviet Union at the end of the Cold War.