An automated radio station was deployed on Bjørnøya in 1941. German forces attacked several arctic convoys with military supplies bound for the Soviet Union in the waters surrounding Bear Island. They inflicted heavy losses upon the Convoy PQ 17 of June/July 1942, but they were ineffective in the Battle of the Barents Sea on New Year's Eve 1942. The waters southeast of Bear Island were the scene of more naval battles in 1943.