Summary
Highlights
Ironically, the United States, despite its Monroe Doctrine and initial opposition to traditional geopolitics, became the main architect of Cold War geopolitical doctrines. The Truman Doctrine, Churchill's Iron Curtain speech, and George Kennan's policies laid the ideological foundation for the Cold War's geopolitics.
While not explicitly abandoning older concepts like 'heartland' or 'rimland,' Cold War geopolitics developed its own terms to describe the rivalry between the Soviet Union and the United States. Concepts such as containment, domino theory, third world, and balance of power emerged to explain the new global power distribution and competition.
The concept of 'containment' was first introduced in 1946 by an anonymous 'Mr. X' (later revealed to be George Kennan) in the journal 'Foreign Affairs.' This policy argued that peaceful coexistence with the Soviet Union was impossible and that the USSR would inevitably try to spread communism globally. Containment aimed to prevent this spread at every point where Soviet influence could reach.
The 'Third World' concept arose from the division of the globe into the communist world (second world) led by the Soviet Union and the free/capitalist world (first world) led by the United States. The 'Third World' was invented to categorize countries that chose not to align with either superpower, remaining apart from the primary competition.
The 'domino theory' provided a rationale for where and why the United States should intervene. It posited that if one country in a region fell to communism, neighboring countries would follow suit, like falling dominos. This theory underscored the importance of preventing even a single country from becoming communist in a particular region to avoid losing influence across the entire area, such as in Southeast Asia during the Vietnam War.
Ideology became a primary driving force behind the foreign policies of the US and the USSR, who were termed superpowers due to their global dominance. Geopolitics, combined with realism, explained the competition, emphasizing mutual containment and the desire to expand influence while preventing the opponent from doing the same. Geopolitical theories like the domino theory helped identify critical regions, such as Southeast Asia, where superpower attention should be focused, influencing US involvement in Vietnam and Soviet expansion in Eastern Europe.