Was world war 1 japan vs usa?

World War I was not fought between Japan and the United States. However, the two nations did have a complex relationship during the war. Japan was a member of the Allies, and it fought alongside the United States against the Central Powers. However, Japan also had its own interests in the war, and it often acted independently of the United States. For example, Japan seized control of German colonies in the Pacific, and it also intervened in the Russian Civil War. As the war progressed, the United States and Japan became increasingly suspicious of each other. The United States was concerned about Japan's growing power in the Asia-Pacific region, and Japan was concerned about America's growing influence in the Western Pacific. These tensions would eventually lead to the outbreak of the Pacific War in 1941.