Western Bloc


The "Three Worlds" of the Cold War era, April – August 1975
  First World: Western Bloc led by the USA, Japan, United Kingdom and their allies
  Second World: Eastern Bloc led by the USSR, China, and their allies
  Third World: Non-Aligned and neutral countries
Political situation in Europe during the Cold War

The Western Bloc, also known as the Free Bloc, Capitalist Bloc and the American Bloc, was a coalition of the countries that were allied with the United States and its ideology (liberalism), a member of NATO, opposed the Soviet Union and Warsaw Pact, and advocated Anti-Communism during the Cold War 1947-1991. The latter were referred to as the Eastern Bloc. The governments and the press of the Western Bloc were more inclined to refer to themselves as the Free World or the First World, whereas the Eastern Bloc was often called the "Communist World" or "Second World".

Western Bloc associations


Countries which have become NATO members after the end of the Cold War

Other NATO-affiliated states and partners

Communist states in opposition to the Soviet Union



Compact of Free Association

CENTO (until 1979)

Rio Treaty

SEATO (until 1977)

Map of SEATO members in 1959, shown in blue

Middle East/North Africa Region

East Asia



Western Bloc Associations Today


Other NATO-affiliated states and partners

Middle Eastern Partners

Asia, South East Asian and Oceania Partners

Inter-American Partners

Quadrilateral Security Dialogue

See also



  • Matloff, Maurice. Makers of Modern Strategy. Ed. Peter Paret. Princeton: Princeton UP, 1971. 702.
  • Kissinger, Henry. Diplomacy. New York: Simon & Schuster, 1994. 447,454.
  • Lewkowicz, Nicolas. The United States, the Soviet Union and the Geopolitical Implications of the Origins of the Cold War New York and London: Anthem Press, 2018.