From 1939, the Royal Canadian Navy (RCN) worked with the RN to establish an anti-submarine training program at Casemates Barracks. In May 1940 Canada was asked to provide garrison support, with one company of The Winnipeg Grenadiers sailing from Halifax to relieve a company of the King's Shropshire Light Infantry.[11] The Special Infantry Company of the Pictou Highlanders was mobilized on September 10, 1942 for service in Bermuda from November 12, 1942. In 1944 the RCN established a training base at the former Royal Navy base at Convict's Bay, St. George's, using a shore facility named HMCS Somers Isles.