Lieutenant Junior Grade Hiroyoshi Nishizawa (西澤 広義, Nishizawa Hiroyoshi, January 27, 1920 – October 26, 1944) was a Japanese naval aviator and an ace of the Imperial Japanese Navy Air Service during World War II. Nishizawa was known to his colleagues as 'the Devil' for his breathtaking, brilliant, and unpredictable aerobatics and superb control of his aircraft while in combat. He was a member of the Tainan Kōkūtai's famous "clean up trio" with fellow aces Saburō Sakai and Toshio Ōta and would see action in the New Guinea campaign as well as in the aerial battles over Guadalcanal and over the Solomon Islands. He was killed in 1944 during the Philippines Campaign while aboard an IJN transport aircraft. It is possible that he was the most successful Japanese fighter ace of the war, reportedly