The Battle Hostile_encounter of Saint-Mihiel was a major World War I battle Hostile_encounter fought Hostile_encounter from 12–15 September 1918 , involving Cause_to_be_included the American Expeditionary Forces ( AEF ) and 110,000 French troops under the command Control of General John J. Pershing of the United States against German positions .

The attack Attack at the Saint-Mihiel salient was part of a plan Arranging by Pershing in which he hoped that the Americans would break Destroying through the German lines and capture Conquering the fortified city of Metz .

The Saint-Mihiel attack Attack established Creating the stature of the U.S. Army in the eyes of the French and British forces , and again demonstrated Coming_to_believe the critical role of artillery during World War Military_operation I and the difficulty of supplying Supply such massive armies while they were on the move Motion .