NATO

NATO - in full the North Atlantic Treaty Organization (French: Organisation du traité de l'Atlantique Nord - OTAN), also called the Atlantic Alliance or North Atlantic Alliance, is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949.

The organization constitutes a system of collective defence whereby its member states agree to mutual defence in response to an attack by any external party.

Its headquarters are in Brussels, Belgium.

For more details see http://en.wikipedia.org/wiki/NATO

Members of NATO

See http://en.wikipedia.org/wiki/Members_of_NATO

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