The Rhineland was official name of the industrialized buffer zone between [[Germany]] and [[France]] prior to [[World War II]]. In general Rhineland is the name of the land around and south of [[Cologne]], along the river [[Rhine]].
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Rhineland is the name of the region around and south of [[Cologne]], along the river [[Rhine]]. The Rhineland became part of [[Prussia]] in 1815. After WWI the heavily industrialized region was under the control of French forces, to form a buffer zone between [[Germany]] and [[France]] until 1930. [[Hitler]] ended its status as demilitarized zone unilaterally in 1936. The Rhineland is part of the modern German states of Rhineland-Palatinate and North Rhine-Westphalia.