Commerce war and the limits of a convoy claim

The core commerce-war premise treated enemy shipping as a single material pool in which every sunk merchant ship eventually had to be replaced. Wolfpack tactics therefore concentrated effort on producing tonnage losses, but they also turned the campaign into an intelligence contest over convoy routes and submarine positions. Tanker convoy TM-1 tests the strategic claim: only two of nine tankers reached port after a 1943 attack. The connection between those losses and fuel rationing by the Eighth Army is questioned because Gibraltar-bound cargo did not necessarily supply an army drawing heavily on Persian Gulf and regional refineries. The example is a reminder to connect convoy losses to real routes, destinations, theatres, and supply systems before assigning operational effect.