On 11 September news was received that the first All-American offensive was to start the next morning with a large artillery bombardment, followed by an infantry advance to wipe out the St. Mihiel salient. All night long the noise of the massive artillery bombardment could be heard. However, flying weather could hardly been worse. Although the squadron flew combat missions during the attack, the missions had to be carried out at low altitudes between 50 and 100m altitude due to the driving rain in order to get the necessary intelligence to support the infantry advance. Flights were flown in darkness, searching for enemy troop concentrations and artillery batteries, returning to Gondreville by the aid of flares at night. Due to the hazardous weather, it was almost impossible to keep formations together, but missions were accomplished. On the 13th, Lieutenants Diskman and Hammond were attacked by enemy aircraft at an altitude of 200m just south of Metz. About 75 rounds from a pair of Lewis machine guns, sufficed and one enemy aircraft was shot down near Orly Ferme. On the 15th near Gorze a four plane patrol was attacked by six German Pfalz D.III aircraft; One enemy aircraft was shot down by observer William Terry Badham in aircraft flown by Lt. Kenny; Kenney and Badham received the Silver Star.