On 15 May, Captain David McK Peterson of the 95th squadron brought down two Enemy Aircraft. These were the first to be recorded in the records of the Group. Towards the end of June, the need for air support on the Château-Thierry front was critical due to the Germans breaking through the line. On the 28th, the group moved to Touquin Aerodrome, where the group was vigorously effective. During the weeks to follow in the Second Battle of the Marne, the group took the offensive on all points and was engaged continually in aerial combat in the Dormans-Eloup sector. Losses were heavy, however 38 victories were recorded while losing 36 pilots. This was the first real test of American airpower in the war.