The Kvarven Fort was a mountain fort that is located by the channel of Byfjorden leading to Bergen, Norway. The fort was built in 1895 to 1899 by Swedes due to the growing tensions in Norway. The fortress played a major role during Operation Weserubung in 1940 which resulted in the knockout of the “Breman” and “Carl Peters” warships. At the time, Norway and Sweden were in union together until 1905. The union between the two nations broke up peacefully, and the fort became Norway state property.