Looking like a castle that willed itself into existence in a mountain along the border with the Netherlands before commanding the Albert Canal to serve as its moat, Eben-Emael boasted reinforced concrete walls, a garrison of more than a thousand men, anti-tank defenses, anti-submarine defenses, and armor-reinforced bunkers. Its abundance of cannons covered all roads leading to the city of Maastricht, as well as the three bridges crossing the canal -- Hitler's only path into Belgium. By all accounts, this was Belgium's Doom Base.
"I CHALLENGE God to try breaching this fortress."
Best of all, the fort's earthen roof made artillery attacks and aerial raids damn nigh pointless. Bombing Eben-Emael was like bombing a well-armed mountain.
"Nice going, Hans. Now you've pissed off the mountain."