US Army Air Service 163rd Aero Squadron

The 163d Aero Squadron was a Air Service, United States Army unit that fought on the Western Front during World War I.

The squadron was assigned as a Day Bombardment Squadron, assigned to the 2d Day Bombardment Group, United States Second Army. Its mission was to perform long-range bombing attacks on roads and railroads; destruction of materiel and massed troop formations behind enemy lines.

With Second Army's planned offensive drive on Metz cancelled due to the 1918 Armistice with Germany, the squadron returned to the United States in June 1919 and was demobilized.

The squadron has never been re-activated and there is no United States Air Force or Air National Guard unit with its lineage or history.