Question

Please help anyone no one helped the first time. Why did the USSR and the US enter a period of detente?

Answer 1

They wanted to trade to each other, and also end the arms race

Answer 2

Détente ended after the Soviet intervention in Afghanistan, which led to the United States boycott of the 1980 Olympics in Moscow. Ronald Reagan's election as president in 1980, based in large part on an anti-détente campaign, marked the close of détente and a return to Cold War tensions.           hope it helps