This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
MayMayFall Gelb de.svg de Militrische Situation whrend des Westfeldzuges zwischen dem und Mai en Military situation during the Western Campain between th and st May Original source dean usma edu europe file File FranceBlitz derived English svg file File MayMayFall Gelb svg some additional data atf fr Arme de Terre Franaise