USA HISTORY

Detailed explanation-1: -Formed in 1949 with the signing of the Washington Treaty, NATO is a security alliance of 30 countries from North America and Europe.

Detailed explanation-2: -The Warsaw Pact was a collective defence treaty established by the Soviet Union and seven other Soviet satellite states in Central and Eastern Europe: Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland and Romania (Albania withdrew in 1968).

Detailed explanation-3: -The North Atlantic Treaty Organization (NATO, /ˈneɪtoʊ/; French: Organisation du traité de l’Atlantique nord, OTAN), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two North American.

Detailed explanation-4: -The North Atlantic Treaty Organization – or NATO – ensures that the security of its European member countries is inseparably linked to that of its North American member countries. The Organization also provides a unique forum for dialogue and cooperation across the Atlantic. NATO.