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. Harris-class attack transport -  The Harris-class attack transport was a class of US Navy attack transport that saw service in World War II.Like all attack transports the purpose of the Harris class ships was to transport troops and their equipment to hostile shores in order to execute amphibious invasions using an array of smaller integral landing craft. As with all such ships the Harris-class was well armed with antiaircraft weaponry to protect itself and its vulnerable cargo of troops from air attack in the battle zone.
Mean Of Transportation