River IJssel, sometimes called Gelderse IJssel ("Gelderland IJssel") to avoid confusion with its Hollandse IJssel namesake in the west of the Netherlands, is a branch of the Rhine in the Dutch provinces of Gelderland and Overijssel. River IJssel flows from Westervoort, east of the city of Arnhem, until it discharges into the IJsselmeer ("Lake IJssel", until the 1932 completion of the Afsluitdijk known as the Zuiderzee, a North Sea inlet). River IJssel is one of the three major distributary branches into which the Rhine divides itself shortly after crossing the German-Dutch border, the other two being the rivers Nederrijn and Waal.

IJsselmeer, Lake IJssel, alternative spelling: Lake Yssel) is a shallow artificial lake of 1100 km² in the central Netherlands bordering the provinces of Flevoland, North Holland and Friesland, with an average depth of 5 to 6 m. The IJsselmeer is the largest lake in Western Europe. The IJsselmeer is a freshwater lake fed through the Ketelmeer by the river IJssel, which gives it its name. It is mainly fed by water from the Rhine since the IJssel is a branch of it.

The International Court of Justice (French: Cour internationale de Justice; commonly referred to as the World Court or ICJ) is the primary judicial organ of the United Nations. It is based in the Peace Palace in The Hague, the Netherlands. Its main functions are to settle legal disputes submitted to it by states and to provide advisory opinions on legal questions submitted to it by duly authorised international organs, agencies, and the UN General Assembly.