Arriving at the same time, a detachment from 462nd Aero Squadron stayed until 6 October to improve some parts of the airfield's organization. Over a total surface of 89 acres, the Air Service engineers constructed 12 wooden barracks and a mess hall, as well as 5 buildings to be used as warehouses and maintenance shops. A station administration building and a hospital clinic was constructed along with an electrical and a telephone grid. The airfield had four French "Bessonneau" aircraft hangars erected. The observation group provided battlefield reconnaissance and artillery cooperation for the V Corps. Operations from Foucaucourt initially were preparations to help the V Corps in the Meuse-Argonne offensive. German soldiers opposed the attack from barbed-wire-protected trenches. Also, additional enemy pursuit, observation and bombardment forces meant most of the Kaiser’s best aviation units defended the area. When the ground attack began on 26 September, inclement weather restricted flight operations. Since cloud cover severely limited photographic reconnaissance, headquarters confined missions to a few, well-defined and extremely important areas. Aircraft and pilots often stood ready to fly, waiting in vain for any break in the clouds. When weather permitted, crews took oblique photographs along enemy lines. If the need for information was great, pilots flew even in heavy cloud cover hoping for a chance break to take that important picture. In early November, the two squadrons of the V Corps Observation Group moved up to Parois Airdrome, but the HQ stayed in Foucaucourt until 4 February 1919, soon to be disbanded. The observation squadrons gave way to the 3d Pursuit Group, which moved into Foucaucout from Lisle-en-Barrois Aerodrome with its headquarter and four SPAD XIII pursuit squadrons on 6 November, part of the 1st Pursuit Wing working for the US First Army:
The pursuit squadrons were hampered by the bad weather, and concentrated their operations to low-level attacks on enemy infantry forces along the roads east of the River Meuse until the Armistice on 11 November. If most of the French units had left in September 1918, SOP 214 was billeted at "Evres", on the south rim of the airfield, 21 September to 25 October 1918, which probably means that it flew from Foucaucourt. SPA 215 also flew from the airfield 6 October to 4 November, both escadrilles flying missions for the American First Army. After the Armistice was signed, the group's squadrons continued flying training sorties from Foucaucourt. The 3rd Pursuit Group was disbanded on 31 December 1918, the 93rd having already left. The last squadron - 28th - was ordered to report to the 1st Air Depot at Colombey-les-Belles Aerodrome to demobilize in mid February 1919. Foucaucourt was then turned over to the 1st Air Depot for de-construction. All hangars and other structures were dismantled and all useful supplies and equipment were removed and sent back to the Depot for storage. Upon completion, the land turned over to the French government. Eventually the land was returned to agricultural use by the local farmers. Today, what was Foucaucourt Aerodrome is a series of cultivated fields located east of Foucaucourt-sur-Thabas. The airfield was located to the northeast of the Départmental 122/151 intersection, with no indications of its wartime use.
