Kruschkev
In 1953, Stalin died and Kruschkev took over. Rebellions against communism occurred. Breschnev physically stopped rebellions.
Detente
Detente was the policy to reduce Cold War tensions. SALT was the Strategic Arms Limitation Treaty and helped reduce the making of weapons between the two superpowers.
Ronald Reagan was not willing to reduce tension and spent more money on the military. He ignored SALT.
Ronald Reagan was not willing to reduce tension and spent more money on the military. He ignored SALT.