100th Aero Squadron of World War I

From Wikipedia.

Part of the U.S. Army in World War I.  Ordered to the Western Front and boarded the SS Tuscania 23 January 1918.  Torpedoed 5 February and ship sunk but most of the 100th rescued.

Reformed in England as assigned as Day Bombardment Squadron for long-range bombing attacks on roads, railroads and massed troop formations.

However, just before its first scheduled combat mission the war ended with the 1918 Armistice.  Returned to the States in June 1919 and demobilized.  The group was never reactivated.

--DaCoot