Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. German submarine U-1022 - German submarine U-1022 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine. She was laid down on 6 May 1943 by Blohm & Voss in Hamburg Germany and commissioned on 7 June 1944 the day after the Allied landings in Normandy with Kptlt. Hans-Joachim Ernst in command. She sank two ships for a total of 1720 metric tonnes. After the war she was handed over to the Allies and sunk in Operation Deadlight.
The answer is:
Mean Of Transportation