Andrei Sakharov spoke out against human rights and was punished for it.
Dissents were people who were punished for speaking out against the regime. One person who was punished for speaking out against the government was the father of the hydrogen bomb, Andrei Sakharov, who spoke up for human rights against the regime.
Foreign policy damaged Khrushchev's reputation. When he rashly decided to send missiles to Cuba, it was the last straw for the government.
In the 1970's détente collapsed when the Soviet Union invaded Afghanistan. A new period of confrontation began between the United States and the Soviet Union. The Soviet Union wanted to restore the pro-Soviet regime in Afghanistan. The United States saw this as a chance for expansion. To show the disapproval of the United States, President Ronald Reagan canceled participation of the United States Olympics that were to be held in Moscow, Russia. Relations between the United States and the Soviet Union became colder. Reagan called the Soviet Union an "evil empire". A new arms race between the two world powers began.
A new arms race erupted between the Soviet Union and the United States.