Non-fictional associations include samurai and their katana (which were restricted to the warrior class in feudal Japan), the U.S. General George S. Patton, who carried an ivory-gripped Colt Single Action Army into battle (and had two kills with it during the Mexican Expedition), the Nazi SS Luger, the Roman pilum, a knight-errant's battlefield regalia, the Thuggee garrote, and Prohibition-era gangster "Machine Gun Kelly", who cultivated his reputation for employing a Thompson automatic.