The Rising Sun Flag (旭日旗 Kyokujitsu-ki?) design was originally used by feudal warlords in Japan during the Edo period. On May 15, 1870, as a policy of the Meiji government, it was adopted as the war flag of the Imperial Japanese Army, and on October 7, 1889, it was adopted as the naval ensign of the Imperial Japanese Navy. It is still used in Japan as a symbol of tradition and good fortune, and is incorporated into commercial products and advertisements. The flag is currently flown by the Japan Maritime Self-Defense Force and a modified version is flown by the Japan Ground Self-Defense Force. It is viewed as a symbol associated with Japanese imperialism in the early 20th century in South Korea,North Korea, China, and by some veterans in the United States because of its use by Japan's military forces during that period.
The design is similar to the flag of Japan, which has a red circle in the center signifying the sun. The difference compared to the flag of Japan is that the Rising Sun Flag has extra sun rays (16 for the ensign) exemplifying the name of Japan as "The Land of the Rising Sun". The Imperial Japanese Army first adopted the Rising Sun Flag in 1870. The Imperial Japanese Army and the Imperial Japanese Navy both had a version of the flag; the naval ensign was , with the red sun closer to the lanyard side, while the army's version (which was part of the regimental colors) was centered. The flag was used until Japan's surrender in World War II during August 1945. After the establishment of the Japan Self-Defense Forces in 1954, the flag was re-adopted and approved by the GHQ. The flag with 16 rays is today the ensign of the Maritime Self-Defense Force while the Ground Self-Defense Force uses an 8-ray version.