 On 19 June, "U-180" was refueled by .Under the command of "Oberleutnant zur See" Rolf Riesen (Crew 38), "U-180" sailed from Bordeaux on 20 August 1944 bound for Japan.She was reported sunk off the Bay of Biscay on 23 August 1944, with the loss of all of her 56 crew.