The ÉbenÉBattle of Fort Ében-Émael was a battle between Belgian and German forces that took place between 10 May and 11 May 1940, and was part of the Battle of Belgium and Fall Gelb, the German invasion of the Low Countries and France. An assault force of German paratroopers, Fallschirmjäger, was tasked with assaulting and capturing Fort Ében-Émael, a Belgian fortress whose strategic position and strong artillery emplacements dominated several important bridges over the Albert Canal. These carried roads which led into the Belgian heartland and were what the German forces intended to use to advance. As some of the German airborne forces assaulted the fortress and disabled the garrison and the artillery pieces inside it, others simultaneously captured three bridges over the Canal. Having disabled the fortress, the airborne troops were then ordered to protect the bridges against Belgian counter-attacks until they linked up with ground forces from the German 18th Army.
The battle was a strategic victory for the German forces, with the airborne troops landing on top of the fortress with gliders and using explosives and flamethrowers to disable the outer defences of the fortress. The Fallschirmjäger then entered the fortress, killing some defenders and containing the rest in the lower sections of the fortress. Simultaneously, the rest of the German assault force had landed near the three bridges over the Canal, destroyed several pillboxes and defensive positions and defeated the Belgian forces guarding the bridges, capturing them and bringing them under German control. The airborne troops suffered heavy casualties during the operation, but succeeded in holding the bridges until the arrival of German ground forces, who then aided the airborne troops in assaulting the fortress a second time and forcing the surrender of the remaining members of the garrison. German forces were then able to use two bridges over the Canal to bypass Belgian defensive positions and advance into Belgium to aid in the invasion of the country. The bridge at Kanne was destroyed, forcing German engineers to construct a new bridge.
Background
On 10 May 1940, Germany launched Fall Gelb ("Plan Yellow"), the invasion of the Low Countries and France. By attacking through the Netherlands, Luxembourg, and Belgium, the German Oberkommando der Wehrmacht planned to outflank the Maginot Line, and advance through southern Belgium and into northern France, cutting off the British Expeditionary Force and a large part of the French forces and forcing the French government to surrender. To gain access to northern France, German forces would have to defeat the armed forces of the Low Countries and either bypass or neutralize several defensive positions, primarily in Belgium and the Netherlands. Some of these defensive positions were only lightly defended and intended more as delaying positions than true defensive lines designed to stop an enemy attack.
However, some defences were of a more permanent nature, possessed considerable fortifications and were garrisoned by significant numbers of troops. The Grebbe and Peel Lines in the Netherlands, which stretched from the southern shore of the Zuiderzee to the Belgian border near Weert, had many fortifications combined with natural obstacles, such as marsh-lands and the Geld Valley, which could easily be flooded to impede an attack. The main Belgian defensive line, the K-W Line (also known as the Dyle or Dijle Line), along the river Dyle, protected the port of Antwerp and the Belgian capital, Brussels. Between the K-W Line and the border was a delaying line along the Albert Canal. This delaying line was protected by forward positions manned by troops, except in a single area where the canal ran close to the Dutch border, which was known as the "Maastricht Appendix" due to the proximity of the Dutch city of Maastricht. There the Belgian military could not build forward positions due to the proximity of the border, and instead assigned an infantry division to guard the three bridges over the canal in the area, a brigade being assigned to each bridge. The bridges were defended by blockhouses equipped with machine-guns. Artillery support was provided by Fort Ében-Émael, whose artillery pieces covered two of the bridges.