This sector was the main battleground for the Meuse-Argonne Offensive, which lasted September 26 – November 11, 1918.

Foch’s great offensive, planned to begin in the last week of September, called for a gigantic pincers movement with the objective of capturing Aulnoye and Mézières, the two key junctions in the lateral rail system behind the German front. Loss of either of these junctions would hamper seriously the German withdrawal. The A.E.F. was designated for the southern arm of the pincers, the thrust on Mézières. Simultaneously the Belgian-French-British army group in Flanders would drive toward Ghent, and the French armies in the Oise-Aisne region would exert pressure all along their front to lend support to the pincers attack.