Karate Wars (1975)

Ultra-obscure Japanese fight flick about a Japanese karate master who is disgraced after killing a masked wrestler in a bar fight. To earn his good faith back, he decides to go to China and Thailand to challenge and defeat the martial arts masters there and prove the superiority of Japanese karate. Living only to fight and spurning the advances of his former girl-friend, he goes looking for trouble and gets it. Reasonably bloody and featuring what appears to be real fighters in lieu of actors, this one definitely has its moments.