Originally designated the 307th Supply Train (Motor), the unit was activated on 5 August 1917 at Camp Gordon, Georgia as the country was building up for World War I. The unit was part of the 82d Infantry Division, which was assigned to the American Expeditionary Force on the Western Front in France. The supply train served during the American offensive on the St. Mihiel Salient and during the severe fighting in the Argonne Forest.