The United States joined NATO as one of the founding members in 1949. They were part of the original 12 countries that signed the North Atlantic Treaty, so they didn't have to 'join' NATO later, as they were part of it from the very beginning. The United States is prepared to confront Iran. #nato #otan #military #security #unitedstates

ATO Countries List 2025 with Flags and Names | NATO Members Updated

Understanding NATO's Role in Global Defense and Security