Question: Who were the main countries involved in the cold war?
Disambiguated questions and answers: question: Who were the main countries involved in the cold war for the Eastern Bloc's Comecon?
Who were the main countries involved in the cold war for the Eastern Bloc's Warsaw Pact?
Who were the main countries involved in the cold war for the Western Bloc's NATO?
Who were the main countries involved in the cold war for the Western Bloc's Southeast Asia Treaty Organization?
Who were the main countries involved in the cold war for the Western Bloc's ANZUS?
Who were the main countries involved in the cold war for the Western Bloc's Central Treaty Organization?
answer: Soviet Union, Bulgaria, Czechoslavak Republic, Hungary, Poland, and Romania
Soviet Union, Albana, Bulgaria, Czechoslavak Republic, German Democratic Republic, Hungary, Poland, and Romania
Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, United Kingdom, United States, Greece, Turkey, West Germany and Spain
Australia, France, New Zealand, Pakistan, Philippines, Thailand, United Kingdom, and United States
Australia, New Zealand, and United States
Iran, Iraq, Pakistan, Turkey, and United Kingdom
Natural Questions answer: Soviet Union
United States (from the Wikipedia article "Cold War")