Western Local Escort Force

Western Local Escort Force (WLEF) referred to the organization of anti-submarine escorts for World War II trade convoys from North American port cities to the Western Ocean Meeting Point (WOMP or WESTOMP) near Newfoundland where ships of the Mid-Ocean Escort Force (MOEF) assumed responsibility for safely delivering the convoys to the British Isles.

[1][2] On the basis of experience during World War I, the Admiralty instituted trade convoys in United Kingdom coastal waters from September 1939.

[5] The Royal Canadian Navy organized the Halifax-based Western Local Escort Force in February 1942 as German U-boats began patrolling North American coastal waters during the "second happy time".

[6] The Royal Navy provided the WLEF with twelve old, short-range destroyers well-equipped for anti-submarine warfare and manned by experienced personnel.

[10] A WLEF escort group would typically meet a westbound ON convoy at WOMP and then individual WLEF ships would be detached with elements of the convoy proceeding separately to Halifax, Sydney, Nova Scotia, Quebec ports on the St. Lawrence River, Saint John, New Brunswick, Boston, Massachusetts, or New York City.

HMCS Sackville , preserved at Halifax Harbour , is the only survivor of the Flower-class corvettes providing the backbone of the WLEF.