The Second World War affected the foreign policies of the United States in the postwar world

The Second World War affected the foreign policies of the United States in the postwar world. How did the strained allied relationships, particularly those of the United States and the U.S.S.R. contribute to initiating the Cold War? Discuss the key events that occurred from the Berlin Airlift to the Cuban Missile Crisis and their impact on the United States. 

 And here’s a short clip on Clara Barton (founder of the American Red Cross) and the following two clips are on Dorothea Dix (Army Nursing Corps founder) and Sally Tompkins. Were these women the most important people in the medical field at this time?