What countries allied with the US after World War 2?

After World War II, several countries allied with the United States, forming the foundation of international alliances like NATO. Key allies included Western European nations such as the United Kingdom, France, West Germany, and Italy, as well as Japan and South Korea in Asia. These alliances were largely driven by mutual interests in containing the spread of communism during the Cold War and promoting democratic governance and economic cooperation. The U.S. also established partnerships with countries in Latin America and other regions during this period.