The Banff-class sloops were a group of ten ships of the Royal Navy. Built as United States Coast Guard Lake-class cutters, in 1941 these ships were loaned to the Royal Navy as anti-submarine warfare escorts. The transfers took place at the Brooklyn Navy Yard, where HMS Malaya was under repair after being torpedoed by U-106. The sloops were manned for transport to England by personnel from the damaged battleship. The sloops were initially used to escort eastern Atlantic trade convoys between England and Sierra Leone, and one was sunk while so employed. The nine surviving sloops were assigned to Operation Torch where two were destroyed attacking Oran in Operation Reservist. The remaining seven escorted Mediterranean convoys in support of the North African invasion and saw varied employment i