NATO's Formation and Its Role in Global Stability Since 1949
On April 4, 1949, representatives from twelve countries in Europe and North America, including the United States, signed the North Atlantic Treaty, establishing the North Atlantic Treaty Organization (NATO). This alliance was formed in the aftermath of World War II to ensure collective security and deter future conflicts, particularly against the spread of Soviet communism. The United States played a pivotal role in this formation, backing the European Recovery Program, known as the Marshall Plan, to rebuild war-torn Europe. NATO's core principle, outlined in Article 5, commits member states to defend one another against external attacks. This article was invoked only once, following the September 11, 2001, attacks on the United States. Over the years, NATO has expanded to include 32 countries, adapting to new geopolitical challenges, such as Russian aggression under President Vladimir Putin. 
