Abteilung für Kriegskarten u. Vermessungswesen

The Abteilung für Kriegskarten und Vermessungswesen (Department for War Maps and Surveying), commonly referenced as IV. Mil-Geo, was the central cartographic and geodetic authority of the German Army (Heer) during the Second World War. Operating within the General Staff, its role was to produce, update, and distribute all military maps, charts, aerial-photo interpretations, and geodetic data required for army operations across Europe, North Africa, and the Soviet Union. The department coordinated an extensive network of field survey units, photogrammetry teams, and map-production offices, overseeing everything from large-scale tactical sheets to strategic overviews of entire theatres. IV. Mil-Geo also standardised symbology, projections, and grid systems, enabling different branches of the Wehrmacht to work from consistent geographic information. Its output was vast, technically sophisticated, and produced under continual operational pressure. Many maps created under IV. Mil-Geo remain important historical records for understanding wartime geography, campaigns, and military planning