15 July 1915 The Second Battle of the Marne began during World War One.
Second Battle of the Marne, article from Wikipedia     https://en.wikipedia.org/wiki/Second_Battle_of_the_Marne

WE STOPPED THEM AT THE MARNE   - D. Bernie       https://www.youtube.com/watch?v=WNka5oFtsCo
We stopped them at the Marne : (It's to ____ with Germany)Sheet Music and information from Library of Congress    https://www.loc.gov/item/2007499570/
THEY SHALL NOT PASS: Battle of the Marne war song   sheet music and information from Library of Congress       https://www.loc.gov/resource/music.muswwism-200209703/?st=gallery