Meuse–Argonne offensive

A major Allied offensive on the Western Front in World War I, fought in northeastern France from September 26 to November 11, 1918. It was the largest United States military operation of the war.

American Expeditionary Forces: The United States armed forces deployed to Europe under General John J. Pershing during World War I. Its First Army supplied the principal American force for the offensive.
Hundred Days Offensive: The series of Allied offensives on the Western Front from August to November 1918 that forced Germany toward defeat. Meuse–Argonne formed the American contribution to this broader Allied advance.
George C. Marshall: An American Army officer who served as a staff planner during World War I and later became a senior military leader. His work with the First Army's operations staff helped organize the offensive.
Armistice of 11 November 1918: The agreement that ended fighting between the Allies and Germany on the Western Front at 11 a.m. on November 11, 1918. The offensive ended when this armistice took effect.
First Army (United States): The United States Army's first field army, organized in France in 1918 under John J. Pershing. It commanded the American formations that opened the attack on September 26.
Second Battle of the Marne: A major Allied victory on the Western Front in July and August 1918 that ended Germany's last large offensive. Its outcome shifted the initiative to the Allies before the autumn offensives.
Hunter Liggett: An American general who commanded the First Army during the Meuse–Argonne offensive. He led the army through the campaign's successive phases after Pershing's command changed.
American military casualties of World War I: The deaths and wounds suffered by United States armed forces during World War I. The Meuse–Argonne campaign accounted for a large share of American combat casualties.
Argonne Forest: A heavily wooded region in northeastern France, between the Aisne and Meuse rivers. Its steep ravines and dense woods made the western sector especially difficult to cross.
Allied Supreme War Council: An inter-Allied body established in 1917 to coordinate the military strategy of the Allied powers. Its 1918 planning helped coordinate the simultaneous offensives on the Western Front.

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Eddie RickenbackerRelated: Rickenbacker’s final aerial victories came during this campaign.