2019-5-3 · This page is the continuation of the history of coastal defences in Belgium and northern France, continuing the story on this page. The XXIII Armeekorps finds its origins in the Kommandostab Eifel.This headquarters unit was established on 24 November 1938.On 1 March 1939 this command was then expanded into the Generalkommando der Grenztruppen Eifel.