Answer:
WHO IS THE BIG THREE: Big Three were Great Britain, the United States, and the Soviet Union with their leaders being Winston Churchill, Franklin D Roosevelt and Josef Stalin respectively.
WHAT WAS THEIR STRATEGY?: At Yalta, the Big Three agreed that after Germany's unconditional surrender, it would be divided into four post-war occupation zones, controlled by U.S., British, French and Soviet military forces. The city of Berlin would also be divided into similar occupation zones.
Step-by-step explanation:
Have a Great Day!!!