After repairs were completed, "Fortune" was briefly assigned to the Mediterranean Fleet before she was transferred to the Eastern Fleet in the Indian Ocean in early 1942. The ship screened an aircraft carrier during the Battle of Madagascar later that year and was assigned to convoy escort duties for the rest of 1942 and early 1943. She returned home in February to begin conversion into an escort destroyer. The ship was transferred to the Royal Canadian Navy (RCN) when it was completed in mid-1943 and renamed HMCS "Saskatchewan". The ship spent the next year escorting convoys in the North Atlantic before she was transferred to the English Channel to defend convoys during the Normandy landings in June 1944. "Saskatchewan" engaged some German patrol boats the following month and was lightly damaged. She was sent to Canada for repairs and a general refit and did not return to the UK until January 1945. The ship resumed her former duties until the end of the war in May and then ferried troops back to Canada for several months. "Saskatchewan" was judged surplus later that year and was sold for scrap, in early 1946.