U.S. President Richard Nixon and Japanese Premier Eisaku Satō agree on the return of Okinawa to Japanese control in 1972. The U.S. retains rights to bases on the island, but these are to be nuclear-free.

Richard Milhous Nixon was the 37th president of the United States, serving from 1969 until his resignation in 1974. A member of the Republican Party, he represented California in both houses of the United States Congress before serving as the 36th vice president under President Dwight D. Eisenhower from 1953 to 1961. His presidency saw the reduction of U.S. involvement in the Vietnam War, détente with the Soviet Union and China, the Apollo 11 Moon landing, and the establishment of the Environmental Protection Agency and Occupational Safety and Health Administration. Nixon's second term ended early when he became the only U.S. president to resign from office, as a result of the Watergate scandal.

Eisaku Satō was a Japanese politician who served as prime minister of Japan from 1964 to 1972. He is the third longest-serving Japanese prime minister, and is ranked second by longest uninterrupted service. Satō is best remembered for securing the return of Okinawa in 1972, and for winning the Nobel Peace Prize in 1974, which stirred controversy. He was a former elite bureaucrat like his elder brother Nobusuke Kishi and a member of the Yoshida school like Hayato Ikeda.

Okinawa Prefecture is the southernmost and westernmost prefecture of Japan. It consists of three main island groups—the Okinawa Islands, the Sakishima Islands, and the Daitō Islands—spread across a maritime zone approximately 1,000 kilometers east to west and 400 kilometers north to south. Despite a modest land area of 2,281 km², Okinawa's territorial extent over surrounding seas makes its total area nearly half the combined size of Honshu, Shikoku, and Kyushu. Of its 160 islands, 49 are inhabited. The largest and most populous island is Okinawa Island, which hosts the capital city, Naha, as well as major urban centers such as Okinawa, Uruma, and Urasoe. The prefecture has a subtropical climate, characterized by warm temperatures and high rainfall throughout the year. People from the Nansei Islands, including Okinawa, the Sakishima Islands, and parts of Kagoshima Prefecture, are often collectively referred to as Ryukyuans. However, in reality, there are significant cultural and customary differences between individual islands and even between local communities.