A brief history of NATO | Britannica

Posted: January 19, 2023 at 6:39 pm

NATO, in full North Atlantic Treaty Organization, International military alliance created to defend western Europe against a possible Soviet invasion after World War II.

A 1948 collective-defense alliance between Britain, France, the Netherlands, Belgium, and Luxembourg was recognized as inadequate to deter Soviet aggression, and in 1949 the U.S. and Canada agreed to join their European allies in an enlarged alliance. A centralized administrative structure was set up, and three major commands were established, focused on Europe, the Atlantic, and the English Channel (disbanded in 1994). The admission of West Germany to NATO in 1955 led to the Soviet Unions creation of the opposing Warsaw Treaty Organization, or Warsaw Pact.

Because NATO ground forces were smaller than those of the Warsaw Pact, the balance of power was maintained by superior weaponry, including intermediate-range nuclear weapons. After the Warsaw Pacts dissolution and the end of the Cold War in 1991, NATO withdrew its nuclear weapons and attempted to transform its mission. It involved itself in the Balkan conflicts of the 1990s. Article 5 of the North Atlantic Treaty stated that an attack on one signatory would be regarded as an attack on the rest, and this article was first invoked in 2001 in response to the terrorist September 11 attacks against the U.S.

Additional countries joined NATO in 1999, 2004, 2009, 2017, and 2020 to bring the number of full members to 30. France withdrew from military participation in 1966 but rejoined NATOs integrated military command in 2009.

Originally posted here:
A brief history of NATO | Britannica

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