Bruce and Shaolin Kung Fu (1977)

He had an odd way of getting even.

Japanese forces in Shanghai attempt to destroy the patriotic spirit of the Chinese by closing down all Kung Fu gyms. Chang Ling (Bruce Le), a top Chinese Kung Fu practitioner, is forced to flee to Korea. The Japanese forces pursue him there, and so Chang Ling fights back, defeating many Japanese fighters before finally encountering the Japanese commander.