Ölüm Savasçisi (1984)

This movie is about a Turkish policeman cracking up a ninja's sadistic gang in Italy. Murat, a fearless Turkish police lieutenant, studied karate for many years in Korea during the Korean War. One day He saves ninja's life, who trained with him in Korea. The ninja sees it as a humiliating event and has a grudge against Murat. Years after the war, Ninja formed a gang with his warriors in Italy. The Italian police can't handle this gang. That's why they ask Turkey for help. Murat will go to Italy to try to bring down Ninja's ruthless gang.