So one of the Cold War events is called the Berlin Blockade. What Stalin basically did was he blockaded West Berlin so nobody could get there and nobody could leave. So you couldn't trade, you couldn't get food, you couldn't get electricity. He basically was trying to choke the life out of them so he could control that land. Now, the United States and England basically adopted a policy called containment. Where we weren't going to fight World War III, but hell if we were going to let the Red expand into our area. So Truman, who was the President of the United States, instituted the Berlin Airlift.