Formed in 1949 with the signing of the Washington Treaty, NATO is a security alliance of 28 countries from North America and Europe.
NATO’s fundamental goal is to safeguard the Allies’ freedom and security by political and military means.
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.
NATO’s headquarters are located in Haren, Brussels, Belgium, where the Supreme Allied Commander also resides.
