 By fall 1943, the decreasing number of Allied shipping losses in the South Atlantic coincided with the increasing elimination of Axis submarines operating there.From then on, the battle in the region was lost by Germany, even though most of the remaining submarines in the region received an official order of withdrawal only in August of the following year, and with ("Baron Jedburgh") the last Allied merchant ship sunk by a U-boat ("U-532") there, on 10 March 1945.Germany made several attempts to upgrade the U-boat force, while awaiting the next generation of U-boats, the Walter and "Elektroboot" types.