The department of the Marne in Champagne was some of the most contested land during the war, site of the initial German invasion, the Battle of the Marne, the First and Second Battles of Champagne, the Champagne-Marne Offensive, Rheims Cathedral, Épernay, Châlons, Vitry-le-Francois, Ste-Menehould, and Perthes-les-Hurlus (First Champagne).
Other views:
Front, Larger, Back