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Subject
- Aeronautics, Military.[remove]2
- Bombers.[remove]2
- Artillery.1
- Artillerymen.1
- Drill and minor tactics.1
- Howitzers.1
- Military art and science.1
- Military education--United States.1
- Military maneuvers.1
- Ordnance testing.1
- Soldiers.1
- United States. Army.1
- United States. Army. Air Corps.1
- United States. Marine Corps.1
- United States. Navy.1