What Were The Causes Of The Delay Of The 79th Division Capturing Montfaucon?

On the opening day of the Meuse-Argonne Offensive of World War I, the newly-created United States 79th Division was templated to advance nine kilometers through German-controlled terrain. However, the advance through the first four kilometers, which included the German strong point of Montfaucon, took two days. The slowed advance of the 79th Division is credited with slowing the progress of the entire American Expeditionary Forces' First Army, thus allowing time for Germans to react to the surpr