Fort Eben-Emael
On 10 May 1940, the Wehrmacht invaded Belgium. On the first day of the offensive, the principal Belgian strong point of Fort Eben-Emael was overwhelmed by a daring paratroop operation and the defensive perimeter thus penetrated before any French or British troops could arrive. After a short running battle that eventually involved the armies of all four belligerents, Belgium was overwhelmed by the numerically superior and better-prepared Germans.