Her Majesty's Naval Base, Devonport (HMNB Devonport), is one of three operating bases in the United Kingdom for the Royal Navy (the others being HMNB Clyde and HMNB Portsmouth). HMNB Devonport is located in Devonport, in the west of the city of Plymouth in Devon, England. It is the largest naval base in Western Europe and is the sole nuclear repair and refuelling facility for the Royal Navy. The co-located Royal Dockyard is owned and operated by the Marine division of Babcock International Group (BM), who took over the previous owner Devonport Management Limited (DML) in 2007. The BM operation is commonly called Devonport Royal Dockyard. From 1934 until the early 21st century the Naval Barracks on the site was named HMS Drake (it had previously been known as HMS Vivid after the base ship of the same name).