Le L 12 is a Hollandstellung type bunker located in Belgium, part of the German defensive fortifications built during World War II. This manschappenbunker (personnel bunker) was designed to house troops and provide shelter during combat operations. The Hollandstellung was a series of defensive positions constructed along the Belgian-Dutch border as part of the Atlantic Wall defenses.
These bunkers were typically built with reinforced concrete and featured multiple rooms for personnel, ammunition storage, and command functions.