The IV Corps Observation Group was an Air Service, United States Army unit that fought on the Western Front during World War I. It was demobilized on 12 May 1919. There is no modern United States Air Force unit that shares its lineage and history.
Foucaucourt Aerodrome was a temporary World War I airfield in France, used both by French units, and squadrons of the Air Service, United States Army. It was located 4.3 miles (6.9 km) ESE of Foucaucourt-sur-Thabas, in the Meuse department in Lorraine in north-eastern France.
Lisle-en-Barrois Aerodrome was a temporary World War I airfield in France, used by the French Air Service from 1915, and later by the Air Service, United States Army. It was located on the plateau north of the commune of Lisle-en-Barrois, approximately 17 km north of Bar-le-Duc, in the Meuse department in north-eastern France.
Touquin Aerodrome was a temporary World War I airfield in France. It was located 1 mile (1.6 km) west of Touquin in the Île-de-France region in northern France.
Rembercourt Aerodrome was a temporary World War I airfield in France. It was located 1.6 miles (2.6 km) east-northeast of Rembercourt aux Pots, now part of Rembercourt-Sommaisne, in the Meuse department in northeastern France.
Vavincourt Aerodrome, was a temporary World War I airfield in France. It was located 0.5 miles (0.80 km) south of Vavincourt, in the Meuse department in north-eastern France.
Maulan Aerodrome, was a temporary World War I airfield in France, used by French units, and later by squadrons of the Air Service, United States Army. It was located 11 miles (18 km) south of the prefecture of Bar-le-Duc, in the Meuse department in Lorraine in north-eastern France.
Delouze Aerodrome was a temporary World War I airfield in France, used by the Air Service, United States Army. It was located 0.8 miles (1.3 km) NE of Delouze-Rosières, in the Meuse department in Lorraine in north-eastern France, and is approximately 25 miles (40 km) west-southwest of Toul.
Belrain Aerodrome was a temporary World War I airfield in France, initially used by French units, and later by squadrons of the Air Service, United States Army. It was located 0.7 miles (1.1 km) south of Belrain, approximately 35 miles (56 km) west-north-west of Toul. in the Meuse department in the Lorraine region in northeastern France.
Souilly Aerodrome was a temporary World War I airfield in France. It was located 1 mile (1.6 km) Northeast of Souilly, in the Meuse department in north-eastern France.
Julvécourt Aerodrome was a temporary World War I airfield in France, used initially by the French Service Aéronautique, and later by the Air Service, United States Army. It was located 0.4 miles (0.64 km) West of Julvécourt, in the Meuse department in Lorraine in north-eastern France.
Ourches Aerodrome, was a temporary World War I airfield in France, used by the Air Service, United States Army. It was 11 miles (18 km) west of the commune of Toul, in the Meuse department in Lorraine in north-eastern France.
May-en-Multien Aerodrome, was a temporary World War I airfield in France, used for very short periods by French units and squadrons of the Air Service, United States Army. It was located 11 miles (18 km) north-northeast of the commune of Meaux, in the Île-de-France region in north-central France.
Coincy Aerodrome was a temporary World War I airfield in France. In its short history it was used by French, German, and American squadrons. It was located 1.0 mile (1.6 km) west of Coincy, in the Aisne department in north-eastern France, approximately 35 miles (56 km) west of Reims.
Remicourt Aerodrome was a temporary World War I airfield in France. It was located 1.2 miles (1.9 km) West of Remicourt, in the Marne department in north-eastern France.
Ferme de Moras Aerodrome, was a temporary World War I airfield in France. It was 1.9 miles (3.1 km) east of the commune of La Ferté-sous-Jouarre, in the Île-de-France region in north-central France, approximately 41 miles (66 km) east of Paris. It was used by both French and American air units.
Saizerais Aerodrome, was a temporary World War I airfield in France. It was located 0.5 miles (0.80 km) southwest of Saizerais, in the Meurthe-et-Moselle department in north-eastern France.
The Third Army Air Service was a United States Army Air Service organization stationed in France and Occupied Germany in the immediate aftermath of World War I. It was demobilized in Germany on 2 July 1919. There is no modern United States Air Force unit that shares its lineage and history.
Chaumont-Hill 402, was a temporary World War I airfield in France, used by squadrons of the Air Service, United States Army, and named after the height of its highest point. It was located east-southeast of the city of Chaumont, in the Haute-Marne department in the Champagne-Ardenne region of north-eastern France, between the main road and the "Ferme d'Heurtebise", 0.5 miles (0.80 km) west of the village of Laville aux Bois.
