Answer:
At the Tehran Conference, the “Big 3” (Roosevelt, Churchill and Stalin) articulated their support for national self determination, the idea that countries should decide their own futures.
Explanation:
The Tehran Conference was the first of the agreements signed between the superpowers during World War II. The occasion brought together for the first time the three great statesmen of the world of the time: Josef Stalin of the Soviet Union, Winston Churchill of the United Kingdom, and Franklin Delano Roosevelt of the United States. This conference took place in Tehran from 28 November to 1 December 1943.
In addition to laying the basis for sharing definitions, it was decided that the Anglo-American forces would intervene in France, completing the pressure siege on Germany, along with the Soviet eastern forces, which was realized with the Allied landing in Normandy in D-Day It was also decided on the division of Germany and the borders of Poland at the end of the war, and formulated peace proposals with the collaboration of all nations. The United States and the United Kingdom also recognized the Soviet border in the West, with the annexation of Estonia, Latvia, Lithuania and eastern Poland.
