The flag

Flag

A flag is a piece of fabric with a distinctive design that is usually rectangular and used as a symbol, as a signaling device, or decoration. The term flag is also used to refer to the graphic design employed by a flag, or to its depiction in another medium.The first flags were used to assist...

 of the now-defunct Empire of Manchukuo

Manchukuo

Manchukuo or Manshū-koku was a puppet state in Manchuria and eastern Inner Mongolia, governed under a form of constitutional monarchy. The region was the historical homeland of the Manchus, who founded the Qing Empire in China...

 had a mustard yellow field with four horizontal stripes of different colors in the upper-left corner. The colors of the flag were based on the colors on the Five Races Under One Union

Five Races Under One Union

Five races under one union was one of the major principles upon which the Republic of China was originally founded in 1911 at the time of the Xinhai Revolution.-Description:...

 flags used by the Peking-based Beiyang government

Beiyang Government

The Beiyang government or warlord government collectively refers to a series of military regimes that ruled from Beijing from 1912 to 1928 at Zhongnanhai. It was internationally recognized as the legitimate Government of the Republic of China. The name comes from the Beiyang Army which dominated...

 and the Empire of China

Empire of China (1915-1916)

The Empire of China was a short-lived attempt by statesman and general Yuan Shikai from late 1915 to early 1916 to reinstate monarchy in China. The attempt was ultimately a failure, but it set back the Chinese republican cause by many years and fractured China into a hodgepodge of squabbling...

. The flag is also similar to the flag used by the Fengtian clique

Fengtian clique

The Fengtian Clique was one of several mutually hostile cliques or factions that split from the Beiyang Clique in the Republic of China's warlord era. It was named for Fengtian Province and led by Zhang Zuolin...

.

The colours on the flag represent the following:

• Yellow represents the Manchu people and unity.
• Red represents the Japanese
  Japanese people
  The are an ethnic group originating in the Japanese archipelago and are the predominant ethnic group of Japan. Worldwide, approximately 130 million people are of Japanese descent; of these, approximately 127 million are residents of Japan. People of Japanese ancestry who live in other countries...
  
   (Yamato) people
  Yamato people
  is a name for the dominant native ethnic group of Japan. It is a term that came to be used around the late 19th century to distinguish the residents of the mainland Japan from other minority ethnic groups who have resided in the peripheral areas of Japan, such as the Ainu, Ryukyuan, Nivkh, Ulta, as...
  
   and bravery.
• Blue represents the Han Chinese
  Han Chinese
  Han Chinese are an ethnic group native to China and are the largest single ethnic group in the world.Han Chinese constitute about 92% of the population of the People's Republic of China , 98% of the population of the Republic of China , 78% of the population of Singapore, and about 20% of the...
  
   and justice.
• White represents the Mongol people and purity.
• Black represents the Korean people
  Korean people
  The Korean people are an ethnic group originating in the Korean peninsula and Manchuria. Koreans are one of the most ethnically and linguistically homogeneous groups in the world.-Names:...
  
  and determination.