Kingdom of the Netherlands. The Kingdom of the Netherlands (Dutch: Koninkrijk der Nederlanden, pronounced [??ko??n????kr??i?? d??r ??ne??d??rl??nd??(n)] ;, West Frisian: Keninkryk fan Nederl??n, Papiamento: Reino Hulandes), commonly known simply as the Netherlands, is a sovereign state consisting of a collection of constituent territories united under the monarch of the Netherlands, who functions as head of state. The realm is not a federation; it is a unitary monarchy with its largest subdivision, the eponymous Netherlands, predominantly located in Northwestern Europe and with several smaller island territories located in the Caribbean. The four subdivisions of the Kingdom???Aruba, Cura??ao, the Netherlands, and Sint Maarten???are constituent countries (landen in Dutch; singular: ...