Roosevelt, Churchill and Stalin held a meet by doing a conference at the Yalta conference. There was a Cold War that was in continuation before the conference happened.
Their meet was critiqued as The Big Three. The meet was organized by Roosevelt, Churchill and Stalin to discuss the consequences on how the world would be after the World War II came to an end.
Hence, Roosevelt, Churchill and Stalin's meet at the Yalta conference held in the mid Twentieth century was regarded as the meet of 'THE BIG THREE.'
To know more about the Yalta conference, click the link below.
https://brainly.com/question/7044659