Bjarne Winter Thorsen (9 January 1922 – 15 February 2001) was a Norwegian resistance member during World War II and later a naval officer.
When World War II reached Norway on 9 April 1940, with the German invasion, Thorsen was a student in secondary school. [1] As early as 1940, he got together with friends and decided to take up resistance work. The group was self-initiated, but they lacked contacts, knowledge and materials to actually conduct intelligence work. [2] [3] Two of them were sent to the United Kingdom: Bjarne Thorsen and Leif Utne. Utne travelled via Sweden, while Thorsen crossed the Norwegian Sea on the vessel Duen. [2] After five weeks of training in radio, telegraphy, and secret codes, he returned to Norway with a transmitter. [1] He landed on Sotra and went from there to Bergen. [4] The radio communication post " Theta" was established on 4 December 1941, with its headquarters at the famous seaside location Bryggen. The radio was operated out of a secret room in a house owned by the Dahm family; Jan Dahm came to be the main operator. [5] Thorsen returned to England when "Theta" was up and running. He had to return in early 1942 with new radio gear to make tracking by German intelligence harder. [4] In total, he crossed the Norwegian Sea six times during this period. [1]
Among other things, "Theta" identified the presence of the German battleship Tirpitz in Norwegian waters, a highly important contribution to the Battle of the Atlantic. [1] Tirpitz was located near Trondheim, far from Bergen, but "Theta" got the information from a scout travelling with the Hurtigruten. [3] The message was sent on 17 January 1942, and spurred a series of Royal Air Force attacks on the battleship. "Theta" later sent information about the German cruiser Prinz Eugen. [6] Kristian Ottosen was also a member of the group running "Theta", [2] as was Helmer Dahl. After a request from Edward Victor Appleton, [7] Thorsen helped Dahl and his family flee to the United Kingdom in April 1942 on the vessel Borghild. [4]
The Abwehr quickly became suspicious of "Theta" and tried to pinpoint its exact location. [4] They managed to interfere with a transmission, attempting to trick the resistance members with a fake message. [5] German authorities finally unveiled "Theta" in October 1942, while conducting a razzia towards Bryggen, but most of the members managed to flee. [4] Kristian Ottosen had already been captured, imprisoned, and tortured for information. Another member died in German captivity, while a third group member died elsewhere as a pilot. [6] Thorsen continued his Allied war service as a telegrapher, and also attended the Norwegian Naval Academy. [1]
He was decorated with the St. Olav's Medal With Oak Branch, reportedly as the youngest Norwegian. He also received the King's Medal for Courage. [1]
After the war, Thorsen served in the Royal Norwegian Navy. He reached the rank of commander. He also spent some time working for the Governor of Svalbard. [8]
From the 1980s, he was a part of a project group aiming to register imprisoned Norwegian war sailors. [4] In 1990, he published the book Usynlige soldater, about the Secret Intelligence Service agents of Norway, together with Bjørn Rørholt. It was considered as providing hitherto unknown information. [9] Thorsen lived in Eiksmarka, [1] and died in February 2001. [4]
Bjarne Winter Thorsen (9 January 1922 – 15 February 2001) was a Norwegian resistance member during World War II and later a naval officer.
When World War II reached Norway on 9 April 1940, with the German invasion, Thorsen was a student in secondary school. [1] As early as 1940, he got together with friends and decided to take up resistance work. The group was self-initiated, but they lacked contacts, knowledge and materials to actually conduct intelligence work. [2] [3] Two of them were sent to the United Kingdom: Bjarne Thorsen and Leif Utne. Utne travelled via Sweden, while Thorsen crossed the Norwegian Sea on the vessel Duen. [2] After five weeks of training in radio, telegraphy, and secret codes, he returned to Norway with a transmitter. [1] He landed on Sotra and went from there to Bergen. [4] The radio communication post " Theta" was established on 4 December 1941, with its headquarters at the famous seaside location Bryggen. The radio was operated out of a secret room in a house owned by the Dahm family; Jan Dahm came to be the main operator. [5] Thorsen returned to England when "Theta" was up and running. He had to return in early 1942 with new radio gear to make tracking by German intelligence harder. [4] In total, he crossed the Norwegian Sea six times during this period. [1]
Among other things, "Theta" identified the presence of the German battleship Tirpitz in Norwegian waters, a highly important contribution to the Battle of the Atlantic. [1] Tirpitz was located near Trondheim, far from Bergen, but "Theta" got the information from a scout travelling with the Hurtigruten. [3] The message was sent on 17 January 1942, and spurred a series of Royal Air Force attacks on the battleship. "Theta" later sent information about the German cruiser Prinz Eugen. [6] Kristian Ottosen was also a member of the group running "Theta", [2] as was Helmer Dahl. After a request from Edward Victor Appleton, [7] Thorsen helped Dahl and his family flee to the United Kingdom in April 1942 on the vessel Borghild. [4]
The Abwehr quickly became suspicious of "Theta" and tried to pinpoint its exact location. [4] They managed to interfere with a transmission, attempting to trick the resistance members with a fake message. [5] German authorities finally unveiled "Theta" in October 1942, while conducting a razzia towards Bryggen, but most of the members managed to flee. [4] Kristian Ottosen had already been captured, imprisoned, and tortured for information. Another member died in German captivity, while a third group member died elsewhere as a pilot. [6] Thorsen continued his Allied war service as a telegrapher, and also attended the Norwegian Naval Academy. [1]
He was decorated with the St. Olav's Medal With Oak Branch, reportedly as the youngest Norwegian. He also received the King's Medal for Courage. [1]
After the war, Thorsen served in the Royal Norwegian Navy. He reached the rank of commander. He also spent some time working for the Governor of Svalbard. [8]
From the 1980s, he was a part of a project group aiming to register imprisoned Norwegian war sailors. [4] In 1990, he published the book Usynlige soldater, about the Secret Intelligence Service agents of Norway, together with Bjørn Rørholt. It was considered as providing hitherto unknown information. [9] Thorsen lived in Eiksmarka, [1] and died in February 2001. [4]