the Soviet union is the United States’ enemy And the countries like France, the Soviet Union, and China started make nuclear weapons. the United States got scared they will lose in the war then they also started make nuclear weapons against Russia. The United States became the first country in the world to use nuclear weapons when they bombed Hiroshima and Nagasaki in 1945. These bombs were faster, cheaper, and its easier destroy the countries.
As the United States perceived their main enemy to be the Soviet Union, they needed missiles that could travel long distance. Therefore, after the war, the United States concentrated on developing intercontinental ballistic missiles (ICBMs). The break through came in 1952 when the United States exploded their first hydrogen bomb. H-bombs provided large explosions with smaller, lighter warheads. Weight had always been a problem and these new lighter missiles were much more accurate. By 1957 the United States had developed the Atlas missile that could travel 6,000 miles and land within a mile of its target.
Both of them used nuclear weapons. Both sides developed a capability to launch a devastating attack even after sustaining a full assault from the other side (especially by means of submarines), called a second strike. This policy was part of what became known as Mutual Assured Destruction: both sides knew that any attack upon the other would be devastating to themselves, thus in theory restraining them from attacking the other.
Nuclear Arms Race: was a competition for supremacy used nuclear weapons between the United States and the Soviet Union, and their respective allies during The Cold war. Mutual Assured Destruction: destruction between nations (US and Soviet Union) guaranted
Cold War Nuclear Arms Race | U.S. vs USSR | 1946 – 1991 http://www.youtube.com/watch?v=W6Z7KWJcVqM Cold War Nuclear Arms Race http://www.youtube.com/watch?v=OqBP7RQvpxs Cold War Nuclear Arms Race http://www.youtube.com/watch?v=0ZuTznc0itc