This looks like WWI footage, possibly Army signal corps.
Title War Hazard Eliminated WSs minefield with mines exploding.
Title "German Railway Car" Shot of car on railroad tracks, with special wheels meant to ride the tracks. Two men pivot the car around 180 degrees as it is slightly raised up off the track.
Title "The Captured Fort Conde, Near Soissons" Shots of the fort.
Title "Field Hospital In The Courtyard of the Famous Castle of Pinon." WS of the hospital with tents setup infrontof it. Men carrying other men on stretchers.
Title "Cavalry in Pursuit" Line of cavalry trotting down road. Soldiers laying down in field with trenches. Shot of one soldier firing machine gun. (many dropouts on tape from this point on) Soldiers run out of trench. Shots of townspeople with horses and carriages and cattle in streets. Busy mnarket street and bombed out church . Shot of German Bi-Plane being loaded.
Title "The Airplane Starts ForThe Front." Great tracking shot of pilot in airplane as it travels down runway about to take off.
Title 1000 Meters Above A Town in the Occupied Area." Aerial shot of town.
Title "The German Aviator Decides To Take Some Pictures On The Way." Great shot of Pilot and co-pilot (behind him) in the air. Co-pilot has a large camera. Cuts to aerial shots and another pilot and co-pilot in air. This Co Pilot has gun instead of camera and is firing at another plane that quickly comes into view.
Title Got Him" Shot of burning plane carcass on ground.
Title "Returning to Make His Report" Plane on ground, officials approach.
Title "British Tanks put out of action by German Artillery Fire Near Fontaine, Notre Dame, a Suburb of Cambrai." Shots of soldiers marching away from tanks in snow, runniong through field.
Title "Messines after its capture was heavily shelled by the Germans." WS field with explosions, clouds of smoke.
Title "Navy Smoke Bombs. These Bombs Are Dropped By Airplanes To Obscure The VIsion of the Crew." WS of ship in sea, plums of smoke comes up from water and grows to engluf the ship.
Title "Four Phosphorous Bombs Exploding Simultaneously On The Alabama. One bomb landing in the fighting top of one of the basket masts. The dense white clouds show how a ship would be engulfed in death dealing fumes by the use of poison gas bombs. Shot of plane in air. Cuts to aeiral of bombs falling. WS spectacular explosion on the sea, CY smoke billowing in air. Another MS of ship in sea as bomb explode one end of it.
Title "Building the Alabama with High Explosive Bombs." More planes drop more bombs on more ships.
Title "Damage done by high explosive bomb on port side of Alabama." Nice CU of pan shot of ships port side, showing damage.