The term "Allied Nations" refers to the countries that joined forces during major conflicts, particularly in World War I and World War II. In these wars, the Allies opposed the Central Powers in WWI and the Axis Powers in WWII. Key members included the United States, United Kingdom, Soviet Union, and France. The Allies worked together to defeat their common enemies, sharing resources, military strategies, and intelligence. Their collaboration was crucial in achieving victory, leading to significant political and territorial changes in the post-war world. The formation of international organizations, like the United Nations, was influenced by the experiences of the Allied Nations.