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 Vietnam the northern village of Lũng Xuyên, was unknown to the Vietnamese public before Tùng's research was published. According to a poem Tiến wrote, the red background represents blood while the yellow foreground represents "the color of our race’s skin", the five points of the star represent intellectuals, peasants, workers, traders and soldiers. Tiến's poem reads in part: <poem> ... All those of red blood and yellow skin Together we fight under the nation’s sacred flag The flag is soaked with our crimson blood, shed for the nation The yellow star is the colour of our race’s skin Stand up, quickly!