 In contrast to the French fortifications, distributed along a single main gallery in the "fort palmé" concept, the Belgian forts remained a set of powerfully-armed, tightly grouped combat blocks surrounded by a defended ditch.Eben-Emael and Battice featured 120mm gun turrets with a range of , and all four forts were equipped with 75mm gun turrets () and French 81mm mortars in pit emplacements.Eben-Emael, with its site along the artificial cliff of the Albert Canal cutting, was the only fort to be equipped with artillery casemates.