HNLMS Rotterdam is an amphibious transport ship (also known as a Landing Platform, Dock, LPD) of the Royal Netherlands Navy. The ship is named after the Dutch city of Rotterdam. HNLMS Rotterdam was the result of a joint project between the Netherlands and Spain, which resulted in the Enforcer design. The ship is equipped with a large helicopter deck for helicopter operations and a dock for large landing craft. The ship has a complete Echelon II hospital – a step above a first aid unit, but below a fully-functional hospital – including an operating theater and intensive care facilities. A surgical team can be stationed on board. The ship also has a desalination system enabling it to convert seawater into drinking water.