What was one major cause of the us shift toward a foreign policy of detente during the cold war?

The term detente is used to describe a situation or a policy that involves easing in political relationships, after a period of tensions.

In the Cold War scenario, the policy of detente adopted by the US, meant the softening and final end of hostilities between the Western and Eastern Blocs. It was mainly triggered by the domestic reforms that the URSS was conducting within its territory and economy and which eventually led to the end of communism in Europe and to the dismantling of the Soviet Union.

Antiwar protests convinced U. S. leaders that voters did not support aggressive foreign policy.