Anne-Sofie Østvedt, (later married Strømnæs), (2 January 1920 to 16 November 2009) was second in command of a Norwegian Resistance group called XU. Like many throughout occupied Europe during WW2 who later joined the resistance she started resisting by publishing underground newspapers and in December 1941 she was recruited by XU. Despite being only in her early 20’s she was vital to XU’s underground movement and became their second in command. In 1942 the Gestapo was attempting to track her down, but her identity was not known by other members of the movement and she was only known as ‘Aslak’ which I understand is a male name in Norway. According to several accounts, after the war many members of the group who she gave orders to were surprised at her young age and the fact she was female.
Three-part television documentary describing a series of actions taken by SOE Norwegian saboteurs during World War II to prevent the German nuclear energy project from acquiring heavy water which could be used to produce nuclear weapons.