USS Hale (DD 133) arrived Halifax 6 September 1940 and decommissioned 3 days later. Entering the Royal Navy, she became HMS Caldwell During her career in the British Navy, Caldwell was assigned to escort duty in the Atlantic and later in the Caribbean, as Britain tried desperately to cope with the German U-boat menace. She joined the Royal Canadian Navy in mid-1942, and while returning to St. John's, Newfoundland, 18 December 1942, was seriously damaged during a heavy gale. She became disabled, and was found drifting helplessly by Wanderer 21 December. Caldwell was then towed to St. John's and later to Boston. Ready for sea again in May 1943, the ship resumed convoy duty with the Royal Canadian Navy until 1 December, when she returned to Tyne and was placed in reserve. Caldwell was broken up for scrap in September 1944.

Commanding Officers:
Lt. Cdr. Michael Wilfred Tomkinson, RN
9 September 1940 – 1 January 1941

Lt. Cdr. Eric Morrison Mackay, DSC, RNR
1 January 1941 – ca. early to mid 1943
RD awarded on 24 January 1941

Lt.Cdr. F.D. Stacpoole, DSC, RNR (retired)
Ca. early to mid 1943 – still in command in July 1944 according to the Navy List

HMS Caldwell is not listed in the October 1944 Navy List