Question: Who made up the big three in ww2?
Disambiguated questions and answers: question: Who made up the big three in ww2 as country?
Who made up the big three in ww2 as leader?
answer: Soviet Union, United States, and United Kingdom
Franklin D. Roosevelt, Winston Churchill, and Joseph Stalin
Natural Questions answer: the Soviet Union
the United Kingdom
the United States (from the Wikipedia article "Grand Alliance (World War II)")