Containment was a geopolitical strategic foreign policy pursued by the United States during the Cold War to prevent the spread of communism after the end of World War II. The name was loosely related to the term cordon sanitaire, which was containment of the Soviet Union in the interwar period.
United States Information Service propaganda poster distributed in Asia depicting Juan dela Cruz ready to defend the Philippines from the threat of communism
A 1962 nuclear explosion as seen through the periscope of a US Navy submarine. The goal of containment was to 'contain' communism without a nuclear war.
Geopolitics is the study of the effects of Earth's geography on politics and international relations. While geopolitics usually refers to countries and relations between them, it may also focus on two other kinds of states: de facto independent states with limited international recognition and relations between sub-national geopolitical entities, such as the federated states that make up a federation, confederation, or a quasi-federal system.
Division of the world according to Haushofer's Pan-Regions Doctrine