How many original members did NATO have at its formation?

NATO, or the North Atlantic Treaty Organization, was formed on April 4, 1949, with a foundational aim of collective defense against aggression. At its inception, the organization was established by 12 original member countries. These nations came together to strengthen their security through mutual defense commitments, reflecting a commitment to collective security in the wake of World War II and the rise of the Soviet Union.

Each founding member played a significant role in countering threats and ensuring regional stability, paving the way for future expansions of the alliance. The membership included the United States, Canada, and ten European countries—Belgium, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, and the United Kingdom. Understanding the historical context of NATO's formation and its initial membership is crucial for grasping the evolution of international military alliances and collective defense strategies.