 Complete the following phrase:  820 Squadrons next major engagement was the hunt for the German battleship . Aircraft from the squadron were able to disable Bismarcks steering gear with a torpedo hit, allowing Bismarck to be engaged and sunk. In June 1941 the squadron left Ark Royal, and in November that year returned to Iceland aboard . The Swordfish were then replaced with Fairey Albacores. 820 Squadron then embarked aboard in February 1942, and sailed with Formidable to serve in the Indian Ocean. The squadron was then active in the Battle of Madagascar, followed by Operation Torch, the Allied landings in North Africa. During these operations, aircraft from the squadron sank , which had earlier sunk the battleship . Formidable and the squadron remained in the Mediterranean to provide support for the Allied landings at Sicily and 