Where do you draw the line against Communist Aggression?
Roosevelt (Truman at Potsdam), Stalin, and Churchill (Altee at Potsdam) met at two conferences to discuss how to: divide the newly conquered Germany, get free elections in Soviet states, and get Soviet Union aid in the U.S. war with Japan.
The Truman Doctrine, an American foreign policy announced by President Harry S. Truman, stated that America would " provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces." In short, the Doctrine stated that America would protect all other nations from the rise of communism.
During the Cold War, the U.S. enacted a policy of Containment. This was the policy of keeping communism within its existing borders and preventing the further spread of communism. Popular containment propaganda portrayed the USSR as a bear, the Russian Bear, and the U.S. as Uncle Sam.
NATO and Warsaw Pact
The Marshall Plan, an American initiative passed in 1948, gave over $13 billion (nearly $100 billion today) to Western Europe to help rebuild Western European economies after the end of World War II.
During the Cold War, the Berlin Blockade was one of the first major international crises. After 11 months the Soviet Union lifted its blockade. The blockade was broken by a massive U.S.-British airlift of vital supplies to West Berlin's two million citizens. This became known as the Berlin airlift.
As communism was on the rise, the U.S. and 11 other western nations formed the North Atlantic Treaty Organization or NATO. The Soviet Union and its affiliated communist nations in Eastern Europe formed a rival alliance known as the Warsaw Pact. Popular political propaganda depicted NATO as an eagle with firearms and Warsaw as a bear with firearms.