NATO stands for the North Atlantic Treaty Organization. It is a military alliance established in 1949 that consists of countries from North America and Europe.
The main goal of NATO is to ensure the collective defense of its member nations against external threats. This is based on the principle of collective defense outlined in Article 5 of the NATO treaty, which states that an armed attack against one or more member states is considered an attack against all members. Additionally, NATO aims to promote democratic values, manage crisis situations, and foster cooperative security and stability in the Euro-Atlantic area.