What is the name of the post-World War II alliance of democratic nations?

• A. NATO
• B. SEATO
• C. Warsaw Pact
• D. OAS

Answer: (A)

NATO, or the North Atlantic Treaty Organization, is the post-World War II alliance of democratic nations formed to protect Western democracies from external aggression. Created in 1949 by the United States, Canada, and Western European countries, its purpose is collective defense—an attack on one member is treated as an attack on all, which helped deter Soviet pressure during the early Cold War. While SEATO, the Warsaw Pact, and the Organization of American States exist or existed in the postwar era, NATO best fits the idea of a broad alliance of democratic nations dedicated to mutual security across the North Atlantic.