"Following the war, Doenitz was held as a prisoner of war by the Allies. He was indicted as a major war criminal at the Nuremberg Trials on three counts. One: conspiracy to commit crimes against peace, war crimes, and crimes against humanity. Two: planning, initiating, and waging wars of aggression. Three: crimes against the laws of war. Doenitz was found not guilty on count one of the indictments, but guilty on counts two and three. Among the war-crimes charges, Dönitz was accused of waging unrestricted submarine warfare for issuing War Order No. 154 in 1939, and another similar order after the Laconia incident in 1942, not to rescue survivors from ships attacked by submarine. By issuing these two orders, he was found guilty of causing Germany to be in breach of the Second London Naval Treaty of 1936. However, as evidence of similar conduct by the Allies was presented at his trial, his sentence was not assessed on the grounds of this breach of international law." - Wikipedia
