OB 5cm KwK

OB 5cm Kw K is a German World War II bunker located in Normandy, France. This type of bunker was part of the Atlantic Wall fortifications built by Nazi Germany to defend against Allied invasion. The designation 'OB' refers to 'Offene Bauweise' (open construction), and '5cm Kw K' indicates it was designed to house a 5cm Kw K (Kampfwagenkanone) anti-tank gun. These bunkers were typically used for defensive firepower along the French coastline.