Government of the Ryukyu Islands
The Government of the Ryukyu Islands (琉球政府, Ryūkyū Seifu) was the self-government of native Okinawans during the American occupation of Okinawa. It was created by proclamation of the United States Civil Administration of the Ryukyu Islands (USCAR) on April 1, 1952, and was abolished on May 14, 1972, when Okinawa was returned to Japan, in accordance with the 1971 Okinawa Reversion Agreement.
Source: Wikipedia — Government of the Ryukyu Islands (CC BY-SA 4.0)