With which term in international relations is Brezhnev associated for his efforts in relations with the United States?

Détente

Brezhnev is associated with the détente phase in relations with the United States.

Leonid Brezhnev, who led the Soviet Union from 1964 to 1982, introduced the concept of the Asian Collective Security system and played a prominent role in the détente phase of Soviet-American relations. His leadership was marked by significant international events, including the suppression of a popular rebellion in Czechoslovakia and the controversial invasion of Afghanistan. During his tenure, he sought to shape global security policies and played a key role in Soviet foreign affairs.