What countries were the U.S. allies during World War 1?

During World War I, the primary allies of the United States were the United Kingdom, France, and Italy, who were part of the Allied Powers. Other notable allies included Russia, Japan, and several nations from the British Empire, such as Canada and Australia. The alliance was formed to oppose the Central Powers, which included Germany, Austria-Hungary, and the Ottoman Empire. The collaboration among these countries was crucial in achieving victory in the war.