Rhineland-Palatinate
The state of Rhineland-Palatinate was founded shortly after the Second World War on 30 August 1946. It was formed mainly from the southern part of the Prussian Rhine Province (the "Regierungsbezirke" of Koblenz and Trier), from Rhenish Hesse, from the western part of Nassau and the Bavarian Rhenish Palatinate minus the county of Saarpfalz. The Joint German-Luxembourg Sovereign Region ("Gemeinschaftliches deutsch-luxemburgisches Hoheitsgebiet") is the only unincorporated area of the state of Rhineland-Palatinate. This condominium is formed by the rivers Moselle, Sauer, and Our, where they run along the border between Luxembourg and Rhineland-Palatinate or the Saarland.
Middle Rhine
The Allied forces ended hostilities of the Second World War on the Middle Rhine on 19 March 1945. The French again took up the administration of the territory in its occupation zone. At end of 1946, the Americans created the State Hesse in their occupation zone; six months later the French founded of the State of Rhineland-Palatinate. Although some areas were combined in the new states that historically do not belong together, a sense of togetherness quickly appeared. The desire for state boundaries more in line with historical territorial boundaries, however, never ceased entirely.