The Stab unit did take part of in the attack on Fort Eben-Emael; which led to the crucial victory at the Battle of Fort Eben-Emael and probably continued to support German forces in the Battle of Belgium and Battle of France. With KG 76 and KG 77, the StG 1 elements supported the break out of the XV Panzer Corps across the Meuse between Houx and Dinant. The StG 1 contingent was present in the Amiens sector on 25 May assisting KG 77 repulse French armoured counter-attacks.