A military bunker located near Éperlecques, in the Pas-de-Calais department of northern France. This region was heavily fortified during the Second World War as part of the Atlantic Wall defensive system constructed by Nazi Germany. The area around Éperlecques contains several significant wartime fortifications, including the massive Blockhaus d'Éperlecques, which served as a launch facility for V-2 rockets.
The local landscape still bears numerous remnants of this period of military engineering and strategic defense planning.