The Meuse-Argonne Offensive was the greatest American battle of the
First World War. In six weeks the AEF (American Expeditionary Forces) lost 26,277 killed and 95,786
wounded. It was a very complex operation involving a majority of the AEF ground forces fighting through
rough, hilly terrain the German Army had spent four years fortifying. Its objective was the capture of
the railroad hub at Sedan which would break the rail net supporting the German Army in France and
Flanders and force the enemy's withdrawal from the occupied territories.
The Offensive itself lasted from September 26 - November 11, 1918.