Admiral Hipper and Blücher took part in Operation Weserübung, the invasion of Norway in April 1940. Blücher was sunk by Norwegian coastal defenses outside Oslo while Admiral Hipper led the attack on Trondheim. She then conducted sorties into the Atlantic to attack Allied merchant shipping. In 1942, she was deployed to northern Norway to attack shipping to the Soviet Union, culminating in the Battle of the Barents Sea in December 1942, where she was damaged by British cruisers. Prinz Eugen saw her first action during Operation Rheinübung with the battleship Bismarck. She eventually returned to Germany during the Channel Dash in 1942, after which she too went to Norway. After being torpedoed by a British submarine, she returned to Germany for repairs. Admiral Hipper was decommissioned after returning to Germany in early 1943, but Prinz Eugen continued to serve in the Baltic until the end of the war.