The Royal Canadian Navy (RCN) is tasked to provide maritime security along the Pacific, Atlantic and Arctic coasts of Canada, exercise Canada's sovereignty over the Arctic archipelago, and support Canada's multi-national and bilateral interests overseas. It comprises the Pacific Fleet at Canadian Forces Base (CFB) Esquimalt, and the Atlantic Fleet at CFB Halifax. CFB Esquimalt is located on Vancouver Island, in British Columbia, and is home to 15 vessels and 6,000 staff, the headquarters for Maritime Forces Pacific, Her Majesty's Canadian (HMC) Dockyard Esquimalt, Fleet Maintenance Facility – Cape Breton (FMF-CB), Fire Fighting and Damage Control School, the Naval Officer Training Centre (NOTC Venture), and extensive housing. CFB Halifax is home port for the 18 vessels of the Canadian Atlantic Fleet and situated in Halifax, Nova Scotia. CFB Halifax employs 7,000 civilians and military staff, and hosts the Canadian Atlantic Fleet headquarters, HMC Dockyard Halifax, FMF Cape Scott, extensive maritime research facilities, an ammunition depot, and the four maritime squadrons of the Royal Canadian Air Force that deploy helicopters aboard ships. The Canadian Armed Forces are currently constructing a new naval facility at Nanisivik, Baffin Island, to provide a summer port for RCN patrols in the Canadian arctic.