A concise history of Joseph Jacques Césaire Joffre and his army during World War I. Joffre was a French general who served as Commander-in-Chief of French forces on the Western Front from the first world war until 1916. He is famous for regrouping the retreating allied armies to beat the Germans at the strategically decisive First Battle of the Marne in September 1914. This work is written in simple language, free of any technicalities, to allow the readers to grasp information quickly.