The Meuse-Argonne Offensive began and lasted for 47 days until the signing of the Armistice on the 11th November and was the largest operation in US military history, involving 1.2 million American soldiers. Commanded by General Pershing it was also the bloodiest operation of the First World War for the American Expeditionary Force who lost over 26,000 men killed. American losses were exacerbated by the inexperience of many of the troops and the tactics used during the early phases of the operation.
Following the Twenty-Second 