Ouvrage Hochwald is a gros ouvrage of the Maginot Line, one of the largest fortifications in the Line. Located in the Fortified Sector of Haguenau in the community of Drachenbronn-Birlenbach in the Bas-Rhin department of northeastern France, it was designed to protect the northern Vosges region of France. Ouvrage Hochwald is sometimes considered as two separate ouvrages because of its separation of the western and the eastern portions of the ouvrage. Uniquely, the original plans for the position included an elevated battery to the rear with long-range 145mm or 155mm gun turrets of a new kind. Hochwald is presently used by the French Air Force as a hardened air defense coordination center.