The Warsaw Pact was a military alliance that existed from 1955 to 1991. It was composed of the Soviet Union and its satellite states in Eastern Europe. Some synonyms for the Warsaw Pact include the Eastern Bloc, the Soviet bloc, the communist bloc, and the socialist bloc. These terms reflect the political and ideological nature of the alliance, which was based on socialist and communist principles. Other potential synonyms might include the Warsaw Treaty Organization, the Warsaw Pact Alliance, or the Soviet-led military alliance, which emphasize the military aspect of the alliance and its ties to the Soviet Union. Overall, there are a variety of ways to refer to the Warsaw Pact depending on the context and perspective of the speaker.