Flag of Vietnam control of Vietnam in the late 19th century, flew the national flag of France. As the colony of Cochinchina (1864–1945), the South was under exclusive French authority. In contrast, North and Central Vietnam were protectorates with parallel systems of Vietnamese and French administration. Several flags were flown in these regions: the French flag, the Vietnamese imperial flag, and a "protectorate flag." From 1920 to 1945, the Vietnamese imperial flag had a yellow background with a single, broad red stripe. Japan occupied Vietnam in 1941-1945. In March 1945, the Japanese deposed the French colonial authorities and proclaimed an Empire of Vietnam
Flag of Acre diagonal line from the bottom left (hoist-side) to the upper right. The top left is yellow with a red star in the corner, and the bottom right is green. The main colors of the flag (green and yellow) are the same as the flag of Brazil and represent the state's integration with Brazil. Independently, each color has the following meaning: The red star in the upper left, called the "Altaneira Star", represents the blood of those who fought for the annexation of the current state of Acre to Brazil. The flag was officially adopted by the governor Epaminondas Jácome ().