The Quebec Conference took place in 1943 during World War II, bringing together leaders from the United States, United Kingdom, and Canada. The main goal was to discuss military strategies and coordinate efforts against the Axis powers. Key figures included U.S. President Franklin D. Roosevelt, British Prime Minister Winston Churchill, and Canadian Prime Minister William Lyon Mackenzie King. During the conference, the leaders addressed various issues, including the planning of the D-Day invasion and the importance of maintaining unity among the Allied forces. The discussions helped shape the course of the war and laid the groundwork for future cooperation among the Allies.