Kingdom of the Netherlands
The Kingdom of the Netherlands, 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 three smaller island territories located in the Caribbean.
Source: Wikipedia — Kingdom of the Netherlands (CC BY-SA 4.0)