The right wing of the German army was now divided effectively into three sections, with Kluck’s First Army north of the Marne, the right of von Bülow’s Second Army south of the Marne but falling back towards it across the waterways of the Grand and Petit Morin, and his left, which connected only weakly with von Hausen’s Third Army, positioned on the Petit Morin itself, in the Marshes of the St. Gond, where that river rose.
