What did the us make alliances with japan and other Euopean coutries?

The United States did not make alliances with Japan and other European countries. Instead, the United States had a policy of isolationism during the early 20th century, meaning that it avoided formal alliances with other countries. The United States did have informal relationships with some countries, such as the United Kingdom and France, but it did not enter into any formal alliances until after World War I.