Chermizy-Ailles is a commune in the Aisne department in Hauts-de-France in northern France. The river Ailette flows west through the commune…Chermizy-Ailles is a commune in the Aisne department in Hauts-de-France in northern France. The river Ailette flows west through the commune, then flows into the lac de l'Ailette, which forms part of the commune's western border.