WordNet (r) 3.0 (2006):

battle of the Chemin-des-Dames
    n 1: a battle in World War I (May 1918); the Germans tried to
         attack before the American numbers were too great to
         defeat; the tactical success of the Germans proved to be a
         strategic failure [syn: Soissons, battle of Soissons-
         Reims, battle of the Chemin-des-Dames, battle of the
         Aisne]