Conversation so far:
when did the ussr agree to a unified germany inside of nato
On May 14, 1955, the Soviet Union established the Warsaw Pact, a military alliance between Russia and its Eastern European satellites—including East Germany.
what was the treaty to a unified germany inside of nato called
The Warsaw Pact established a mutual-defense organization composed of the Soviet Union and Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, and Romania.
was the warsaw pact called anything else
The Warsaw Pact was formally known as the Warsaw Treaty of Friendship, Cooperation, and Mutual Assistance.
what was the warsaw pact a step towards
The Warsaw Pact was the first step in a more systematic plan to strengthen the Soviet hold over its satellites.

Question: when did the pact end
Self-contained rewrite: when did the warsaw pact end