 19 (also known as Japanese Midget Submarine "C" by the US Navy) is a historic Imperial Japanese Navy midget submarine that was part of the Japanese attack on Pearl Harbor on 7 December 1941.The submarine's crew was ordered to enter Pearl Harbor, attack the moored American warships with its two torpedoes and then scuttle her with explosives.However, the crew was unable to enter the harbor due to navigational difficulties, and the submarine ran aground and was captured by American forces.