Empire of Vietnam
The Empire of Vietnam was a short-lived Japanese puppet state that lasted from 11 March to 23 August 1945. When the Japanese seized control of French Indochina, they allowed Vichy French administrators to remain in nominal control. This French rule ended on 9 March 1945, when the Japanese officially took control of the government. Soon after, Emperor Bảo Đại voided the 1884 treaty with France and Trần Trọng Kim, a historian, became prime minister.