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Subject
- Aeronautics, Military.[remove]5
- Bombers.3
- Biplanes.2
- Military art and science.2
- United States. Marine Corps.2
- Airplanes.1
- Airships.1
- Artillery.1
- Artillerymen.1
- Curtiss-Wright Corporation.1
- Drill and minor tactics.1
- Great Britain. Royal Air Force.1
- Howitzers.1
- Los Angeles (Airship)1
- Military education--United States.1
- Military maneuvers.1
- New York (N.Y.)--Aerial film and video footage.1
- Ordnance testing.1
- Parachute troops.1
- Parachutes.1