 Engagements of the American Expeditionary Forces in France (Gen. John J. Pershing, commanding) in which he participated included St. Mihiel (12-21 September 1918), trench and tank combat against German defensive positions in northeast France, hampered by driving rain, mounting mud, and overstretched supply lines; Meuse-Argonne (26 September 1918 – 11 November 1918) frontal assaults village to village on the Western Front and through the Argonne Forest; and, post-Armistice, the general defense duty recognized as "Defensive Sector.