Answer:
"We weren't concerned about markets; we were concerned about preventing Soviet control of larger areas of the world than they already controlled. When the Second World War ended, France was decimated. England was almost brought to its knees, you'll remember, and if Hitler had moved at one time, he could have probably brought them to their knees. The Soviet Union had gone through the most traumatic experience of its career. I read that in the Second World War it's estimated that the Soviet Union lost between twenty-five and thirty million men. So I think they were just determined that it was never going to happen to them again. But an enormous vacuum had been left in the free world by the end of World War II, and the Soviet Union was determined to move into that vacuum. Now, that was the basis of the Marshall plan when we were thinking about reviving Europe. At the time the Soviets were pressing and searching and trying to find every soft spot where they could insert themselves. That was the reason for the North Atlantic Treaty Organization; it was the reason for the Truman Doctrine."