WWII American Army Medic Desmond T. Doss, who served during the Battle of Okinawa, refuses to kill people and becomes the first Conscientious Objector in American history to receive the Congressional Medal of Honor. After Desmond Doss nearly kills his younger brother, he refuses to handle weapons or engage in war. However, post the Japanese attack on Pearl Harbour, he joins the American army as a combat medic. Hacksaw Ridge is a 2016 epic biographical war film directed by Mel Gibson and written by Andrew Knight and Robert Schenkkan.