WORLD WAR I: GAS WARFARE.
Gassed soldiers, World War I
WORLD WAR I: U.S. TROOPS.
Belgian and British Troops.
WORLD WAR I: GAS MASKS.
WORLD WAR I: HMS HERCULES.
Injured solider during the First World War.
WORLD WAR I: TRENCH, c1915.
WORLD WAR I: TANK WARFARE.
WORLD WAR I: FRANCE
WORLD WAR I: BATTLEFIELD.
WORLD WAR I: CEREMONY.
WORLD WAR I: HOWITZER.
US soldier blinded by gas attack, First World War
WORLD WAR I: U-BOAT, 1915.
World War One.
WORLD WAR I: GALLIPOLI.
WORLD WAR I: TRENCH.
WORLD WAR I: GERMAN TROOPS.
WORLD WAR I: MARNE, 1918.
WORLD WAR I: SOMME, 1916.
World War I recruitment poster
WORLD WAR I: SENEGALESE.
WORLD WAR I: AIRSHIP, 1917.
WORLD WAR I: DARDANELLES.
WORLD WAR I: TRANSPORT.
WORLD WAR I: CANAL DU NORD.
WORLD WAR I: TRENCHES.
USS COMFORT, c1919.
WORLD WAR II: FRANCE.
WORLD WAR I: BRITISH TANK.
WORLD WAR I: ARMISTICE.
WORLD WAR I: CAMEL, 1915.
WORLD WAR I: GERMAN ARMY.
WWI: WOUNDED SOLDIER.
WORLD WAR I: TILLOLOY.
WORLD WAR I: ARCHANGEL.
WORLD WAR I: CANNONS.
Transportation of the wounded from the French front lines.
WORLD WAR I: TURKEY, 1915.
WORLD WAR I: FRENCH POSTER.
World war one French Army food wagon.
WORLD WAR I: TRENCH, c1917.
WORLD WAR I: RECRUITING.
WORLD WAR I: VLADIVOSTOK.
World War One German prisoners of War.
WORLD WAR I: PETROGRAD.
WORLD WAR I: TROOPS.
WORLD WAR I: GAS ATTACK.
WORLD WAR I: SUBMARINES.
A wounded American soldier, receiving first-aid treatment.
WORLD WAR I: NIEUPORT.
WORLD WAR I: USS OKLAHOMA.
A German trench.
WORLD WAR I: PARADE.
WORLD WAR I: CHATEAU.
WORLD WAR I: PALESTINE.
Salvation Army member writes a letter on behalf of an injured British soldier.
Queen Alexandra of Great Britain.
A wounded French Soldier being helped by comrades.
WORLD WAR I: BATTLEFIELD
WORLD WAR I.
WORLD WAR I: SERVICE CROSS.
WORLD WAR I: EXPLOSION.
WORLD WAR I: MORTAR.
WORLD WAR I: U.S. NAVY.
WORLD WAR I: REVIEW, 1918.
WORLD WAR I: AERIAL COMBAT.
WORLD WAR I: FRENCH TANK.
WORLD WAR I: ARABIA, 1917.
WORLD WAR I: PRISONERS.
WORLD WAR I: HOSPITAL.
WORLD WAR I: FRANCE, 1918.
A high explosive shell exploding over French troops during World War One
WORLD WAR I: GERMAN GUNS.
WORLD WAR I: VISTULA RIVER.
Captured German soldier is treated for his wounds.
WWI: WOUNDED SOLDIERS.
WWI: TROOPS, 1914.
Word War I French Cartoon, Agitated Retreat, circa 1914
WORLD WAR I: WOUNDED, 1918.
WORLD WAR I: TOUR, C1918.
WORLD WAR I: MONUMENT.
WORLD WAR I: TRENCH, c1914.
World War I American Destroyer Laying Smoke Screen in North Atlantic Ocean, L.A. Shafer, Painting, circa 1917
WORLD WAR I: RUSSIA, C1917.
WORLD WAR I: FRANCE.
World War I Transports with U.S. Troops Sail for England Escorted by U.S Navy Destroyers, Fred, Hoertz, Painting, circa 1918
German field artillery in action during World War One
W W I: BATTLE OF VERDUN.
WORLD WAR I: RIFLE GRENADES.
WORLD WAR I: FRENCH TROOPS.
WORLD WAR I: GERMANY, 1915.
WORLD WAR I: BERLIN, 1919.
WORLD WAR I: BURIAL, 1917.
WORLD WAR I: LUSITANIA.
WORLD WAR I: CAMP DIX.
World War one.
WORLD WAR I: TRENCH, c1916.
WORLD WAR I: PARADE, 1919.
WORLD WAR I: DISCHARGE.
WORLD WAR I: TANNENBERG.
GUILLAUME APOLLINAIRE
WORLD WAR I: ROME, C1918.
WORLD WAR I: FRENCH CRUISER.
World War I German Cartoon in Die Lustige Blatter, Berlin, Germany, General Joffre's Dream of French Battlefield Losses, circa 1915
Battleships from a Battle Squadron of the Grand Fleet patrolling the North Sea in 1916 during World War I
WORLD WAR I: RED CROSS.
British military ambulances evacuate casualties.
WORLD WAR I: SURRENDER
Wounded children in hospital after an air raid.
WORLD WAR I: CELEBRATION.
World war One French naval submarine.
First World War Russian imperial cavalry.
WORLD WAR I: REGIMENT.
WORLD WAR I: SOLDIERS.
WORLD WAR I: TRAINING.
WORLD WAR I: ADVANCE.
WORLD WAR I: LUNEVILLE.
WORLD WAR I: VICTORY MARCH.
The fight at the bridge of Melazzo.
WORLD WAR I: ARMENTIERES.
WORLD WAR I: TRIESTE
WORLD WAR I: FRENCH TRENCH.
WORLD WAR I: GHENT, 1918.
WORLD WAR I: TURKISH ARMY.
WORLD WAR I: NAVAL MINES.
WORLD WAR I: GERMAN POWs.
WORLD WAR I: GERMAN BOMBS.
WORLD WAR I: CANTIGNY, 1918.
WORLD WAR I: BELLEAU WOOD.
WORLD WAR I: ADVANCE, 1916.
WORLD WAR I: AVIATORS, 1914.
WORLD WAR I: GERMAN DEAD.
WORLD WAR I: ANZACS, c1918.
WORLD WAR I: BALKANS.
WORLD WAR I: BATON, 1918.
WORLD WAR I: ONE-MAN TANK.
A man Galia, seriously wounded.
WORLD WAR I: SHELL FACTORY.