 Stab./KG 55 attacked the Châteaudun Air Base and supported German army advances at Charleville-Mézières and the Battle at Sedan.From 11 May–2 June it flew operations against Châteauroux-Déols Air Base, Orleans, Soissons and Lyon – Mont Verdun Air Bases.I./KG 55 moved again to Malmsheim near Stuttgart.