Convoy HX 126 was the 126th of the numbered series of World War II HX convoys of merchant ships from HalifaX to Liverpool. The ships departed Halifax on 10 May 1941 and were escorted across the North Atlantic by the armed merchant cruiser Aurania intended to provide protection against merchant raiders. Aurania was poorly equipped to defend the convoy from attacks beginning on 19 May by U-boats of the 1st, 2nd and 7th Flotillas, operating out of Brest, Lorient and St Nazaire, respectively.