from wikipedia:
Chinese dragon is a symbol of power, strength, and good luck.
During World War II, the Japanese military named many armaments after Chinese dragons. The Kōryū 蛟竜 < jiaolong 蛟龍 "flood dragon" was a midget submarine and the Shinryū 神竜 < shenlong 神龍 "spirit dragon" was a rocket kamikaze aircraft. An Imperial Japanese Army division, the 56th Division, was codenamed the Dragon Division. The Dragon Division was annihilated in the Chinese town of Longling, in Chinese meaning Dragon's Tomb.