## Overview Air Base Karup is the principal air base of the Royal Danish Air Force and Denmark’s largest military installation[1][2]. Located three kilometers west of Karup in mid-Jutland, the facility spans 3,000 hectares, with only a third of this area enclosed within its operational zone, marked by a 17-kilometer fence[1][2]. The base is a critical hub for Danish military aviation, housing key operational, training, and support units, and it also shares its runways with Midtjyllands Airport, which serves civilian air traffic in the region[2][4]. ## History Karup Air Base has a storied past, originally constructed by German occupying forces in 1940 as “Einsatzhafen Grove” to facilitate offensive operations against England[1]. By the war’s end, it had transitioned to a defensive fighter base. After liberation in May 1945, the base briefly hosted German refugees before being transferred to Danish military control in January 1946[1]. Over the decades, it evolved into the Royal Danish Air Force’s main operational center, supporting both national defense and NATO commitments. ## Functions and Key Achievements The base is home to several specialized wings and units, including the Helicopter Wing, Flying School, Air Control Wing, Specialist School, Training Centre, Expeditionary Air Staff, and Operation Support Wing[2][4]. It also hosts the operational commands of both the Royal Danish Army and Air Force, underscoring its strategic importance[2]. Civilian industry is present as well: Danish Aerotech operates within the base, producing and maintaining aircraft and missiles, which highlights the intersection of military and technological enterprise[2]. A notable achievement is the base’s dual-use infrastructure, allowing both military and civilian aviation to operate efficiently. Midtjyllands Airport, using the same runways, provides regional connectivity, though civilian flights have fluctuated over the years[4][6