Conversation so far:
What was Henry Kissinger's détente?
Détente was the policy of relaxing tensions between Moscow and the West, as promoted by Richard Nixon, Henry Kissinger and Leonid Brezhnev.
What was the détente policy about?
Henry Kissinger's policy détente is the easing of strained relations, especially in a political situation, through verbal communication.
Was Henry Kissinger's détente policy successful?
Henry Kissinger negotiated the Strategic Arms Limitation Talks and the Anti-Ballistic Missile Treaty with Leonid Brezhnev, General Secretary of the Soviet Communist Party.
Are there any other interesting aspects about Henry Kissinger's negotiations?
Negotiations about strategic disarmament were originally supposed to start, but were postponed in protest upon the invasion by Warsaw Pact troops of Czechoslovakia in 1968.

Question: Why did he want to do this?
Self-contained rewrite: Why did Henry Kissinger want to negotiate about strategic disarmament?