Linked from
The 17 pages that link to First Battle of the Marne, each with the reason it gives.
World War IBroader topic: It ended hopes for a rapid German victory in the west.
Schlieffen PlanBroader topic: The German retreat ended hopes of a quick victory in the west.
Western FrontBroader topic: Its outcome ended Germany’s attempt to win the war quickly in the west.
Henri GouraudRelated: Gouraud commanded French forces during the battle’s wider campaign.