after working up, "ungava" was assigned to halifax force. she remained with the unit until may 1943 when she was ordered to join gaspe force, escorting convoys through the saint lawrence river. later that year in december, she transferred back to halifax force and served with that unit for another five months. in may 1944 she transferred to sydney force, spending the rest of the year with that unit before returning to halifax force in february 1945.