Neutral Moresnet
Neutral Moresnet (French pronunciation: [mɔʁɛsnɛt], [mɔʁɛsnɛ], German pronunciation: [ˈmɔʁəsnɛt], [ˌmɔʁəsˈnɛt]) was a small Belgian–Prussian condominium in western Europe that existed from 1816 to 1920 and was administered jointly by the United Kingdom of the Netherlands, Belgium (after its independence in 1830) and the Kingdom of Prussia. It was 1.5km wide and 2.5km long, with an area of 3.5 square kilometres.