The treaty that ended the war between the United States and Japan is known as the Treaty of San Francisco or the Treaty of Peace with Japan, signed on September 8, 1951. The treaty officially ended World War II hostilities and marked Japan's acceptance of the post-war order. It renounced war, addressed reparations, and led to the restoration of Japan's sovereignty. The treaty established a foundation for Japan's future relations with the U.S. and other countries, facilitating Japan’s reconstruction and its emergence as a major economic power in the following decades.