The Rotterdam class are two landing platform dock (LPD) ships in service with the Dutch Navy. Built by Damen Schelde Naval Shipbuilding at Vlissingen, their mission is to carry out amphibious warfare by transporting the bulk of the Korps Mariniers. These ships have both a large helicopter flight deck and a well deck for large landing craft, as well as space for up to 33 main battle tanks. Rotterdam was commissioned in 1998 and Johan de Witt in 2007. Rotterdam and Johan de Witt are based at the Nieuwe Haven Naval Base in Den Helder, the Netherlands.