Beginning in 1936, a newly-formed German military mapping agency produced a large number of topographic map series covering all parts of Europe at various scales, as well as much of northern Africa and the Middle East.
This organization started out as a back room department of the German Army General Staff, focused on military contingency mapping. But, given the murderous goals of the Nazi regime, it quickly morphed into something else, a military mapping agency which provided planning tools for the Nazi leadership to wage a war of conquest, marked by atrocities and unspeakable crimes.