OB 10,5cm Flak is a World War II-era German anti-aircraft bunker located in France. This concrete fortification was part of the Atlantic Wall defensive system constructed by Nazi Germany along the western European coastline. The bunker housed a 10.5 cm anti-aircraft artillery piece designed to defend against Allied air attacks.
Built during the German occupation of France, this structure represents the extensive military engineering efforts undertaken to protect occupied territories from aerial bombardment.