The Meuse-Argonne Offensive was the largest operation of the American Expeditionary Forces in World War I and the deadliest battle in American military history. Over the course of 47 days, 1.2 million American soldiers fought along a front stretching from the Meuse River to the western edge of the Argonne Forest in northeastern France.
The offensive was part of the broader Allied Grand Offensive that aimed to break the Hindenburg Line and end the war. General Pershing commanded the American First Army, which attacked northward through some of the most heavily fortified terrain on the Western Front.
The battle can be divided into three phases. The first phase (September 26 – October 3) saw rapid initial gains followed by stiffening German resistance. The second phase (October 4 – 31) was a grinding, bloody slog through the Argonne Forest and the fortified Kriemhilde Stellung line. The third phase (November 1 – 11) saw the Americans finally break through, with the war ending on November 11.
Margaret Sheldon witnessed this battle firsthand. She was at Varennes-en-Argonne when the offensive began, then moved forward to Château-Chéhéry as the front advanced. Her diary entries from September through November 1918 describe the sights, sounds, and human cost of the battle — the endless streams of wounded, the thunder of artillery, the joy of the Armistice.
The American cost was staggering: 26,277 killed and over 95,000 wounded in 47 days. The offensive was decisive in ending the war, as the German army, already weakened by years of attrition and the Allied advances elsewhere, could not withstand the relentless American pressure.
Key Locations in Margaret’s Diary
- Varennes-en-Argonne — where Margaret was when the offensive began
- Château-Chéhéry / Châtel-Chéhéry — site of Alvin York’s famous action
- Fléville — a village Margaret passed through en route north
- Cornay — where Margaret was based when the Armistice was signed