ΝΑΤΟ, or the North Atlantic Treaty Organization, is a military alliance established in 1949. It was created to provide collective defense against potential threats, particularly during the Cold War. Member countries agree that an attack on one is an attack on all, promoting security and cooperation among nations. The organization currently includes 30 member states from North America and Europe. ΝΑΤΟ conducts various missions, including crisis management and cooperative security, and works to promote democratic values. Its headquarters is located in Βρυξέλλες, Βέλγιο, serving as a central hub for decision-making and coordination among member nations.