1944 when it failed to arrive at Brest. The submarine was lost with all hands and her wreck has yet to be found. There is much speculation surrounding the loss of the U-972, it is reported that she was sunk by one of her own circling T5 torpedoes. But now it is believed she was sunk by Allied warships. This was her first and only patrol during World War II. The real reason of her sinking is still unknown as her last resting place remains lost. References Bibliography German Type VIIC submarines U-boats commissioned in 1943 World War II submarines of Germany Ships built in Hamburg 1943 ships Missing U-boats of World War II Maritime incidents in December 1943 World War II shipwrecks in the Atlantic Ocean Ships lost with all hands Missing submarines of World War II