Appearing in Europa magazine #27, Fortress Holland (Europa Battle Scenario #4) is a specially numbered 4 page pullout in the center of the magazine. It relies on the core rules from Fall of France (1981), while adding some modifications and tweaks.

From the Introduction:
"As most Fall of France players know, under existing rules Germany has a very easy time forcing Holland out of the War. Had the Allies read the rules and victory conditions they might have done things differently..."