WWI: VETERAN, c1917.
WWI: VETERAN, 1918.
WALTER REED HOSPITAL, c1918.
Amputee war veteran.
CALVIN COOLIDGE (1872-1933).
Prince Albert visiting war veterans.
WWI: POSTER, 1919.
WWI: BELGIAN ARMY, c1914.
AMERICAN LEGION, 1919.
VETERAN BUTTON.
WWI: SOLDIERS, c1914.
WWI: TANK, c1915.
WWI: FRENCH TROOPS, c1914.
WWI: SOLDIER, c1917.
WWI: PASSCHENDAELE, 1917.
Shrapnel X-ray, early 20th century
GOLFING, 20th CENTURY.
WWI: KITCHENS, c1917.
WWI: SOLDIER, c1914.
SAMPSON PENSION, 1818.
WWI: ARRAS, c1919.
WWI: TRENCHES, c1916.
WWI: FRANCE, c1916.
WWI: PRISONERS, c1914.
WWI: DUGOUT, c1914.
WWI: AIRPLANE, c1914.
WWI: TRENCHES, c1914.
WWI: MOTORCYCLES, c1914.
WWI: VACCINATIONS, c1914.
WWI: MASS, c1914.
WWI: SHELTER, c1914.
WWI: ZOUAVES, c1914.
WWI: PARIS, c1914.
WWI: MITRAILLEUSE, c1914.
WWI: COOKS, c1914.
WWI: KITCHEN, c1914.
WWI: CYCLISTS, c1914.
WWI: SOMME, c1916.
WWI: SOLDIER, c1915.
WWI: TRENCHES, c1915.
WWI: SOLDIERS, c1915.
WWI: HOWITZER, c1915.
WWI: UHLANS, c1914.
WWI: ROUEN, c1914.
WWI: BELGIUM, c1914.
WWI: CASUALTIES, c1914.
WWI: GERMAN SOLDIER, c1914.
WWI: FIELD PHONE, c1914.
WWI: ANTI-AIRCRAFT, c1914.
WWI: BRITISH SOLDIER, c1914.
WWI: ARMORED CAR, c1915.
WWI: ARMORED CARS, c1915.
WWI: BRITISH TROOPS, c1914.
WWI: ARMORED CARS, c1914.
WWI: INDIAN ARMY, c1914.
WWI: GERMAN RIFLEMEN, c1915.
WWI: FRENCH ARMY, c1914.
William Perkins Black.
WAR OF 1812: VETERANS.
WWI: 369TH INFANTRY, c1918.
A transport wagon of the A
BONUS ARMY, 1932.
WORLD WAR I VETERAN, c1980.
General Don Emilio Mola y Vidal, 1st Duke of Mola.
General Don Emilio Mola y Vidal.
VIETNAM VETERANS MEMORIAL.
WWI: HOSPITAL, 1916.
WWI: GERMAN INFANTRY, c1914.
WWI: BOULOGNE, c1914.
WWI: BUS, c1914.
WWI: FIELD TELEPHONE.
WWI: AMERICAN TROOPS.
WWI: AUSTRIAN TROOPS.
WWI: FRANCE, 1918.
WWI: WOUNDED SOLDIERS.
WWI: FIELD BAKERY, 1914.
WWI: BURIAL, 1914.
WWI: MUSICIANS, 1914.
WWI: HUSSARS, 1914.
WWI: GERMAN SOLDIERS, 1914.
WWI: GERMAN SOLDIERS.
WWI: RUSSIAN INFANTRY.
WWI: TROOPS, 1914.
WWI: WOUNDED SOLDIER.
WWI: PRISONERS OF WAR.
WWI: SOLDIERS, 1914.
WWI: FIELD KITCHEN, 1914.
WWI: SPAHIS, 1914.
WWI: GERMAN ARTILLERY.
WWI: ALGERIAN SOLDIERS.
WWI: CASUALTIES, 1914.
Young Veteran Soldier in Wheelchair on Porch, Walter Reed General Hospital, Washington DC, USA, circa 1915
WWI: HOSPITAL, c1914.
WALTER REED HOSPITAL.
WWI: PRISONERS OF WAR, 1915.
WWI: ARMORED TRAIN, c1914.
WWI: BATTLEFIELD, c1916.
WWI: FLANDERS, c1916.
WWI: ITALY, c1916.
WWI: CRAONNE, c1914.
WWI: PRISONER OF WAR, c1914.
WWI: CHRISTMAS, c1915.
WWI: FRANCE, c1914.
WWI: GERMAN SCOUTS, c1915.
MEMORIAL DAY POSTER.
WWI: EIFFEL TOWER, c1914.
HOOVERVILLE, 1932.
BONUS ARMY MARCHERS, 1932.
A Canadian Scottish soldier with two British Highland regiment soldiers.
British soldiers at a camp in Belgium.
American soldiers advancing on a German bunker position.
American Soldiers at the Declaration of War.
World War One British soldiers.
British soldiers known as 'Tommys' assisting residents of Etaples.
326th Infantry, 82nd Division, advancing on enemy positions in Choloy.
WORLD WAR I: TRENCH, c1915.
WORLD WAR I: TRENCH, c1917.
Don Emilio Mola y Vidal, 1st Duke of Mola.
Albert Prejean, a French actor and First World War veteran
WWI: BATTLE OF ARRAS, 1917.
WWI: NORTH AFRICAN TROOPS.
WWI: TELEPHONE OFFICE.
WWI: MILITARY POLICE, 1918.
WWI: BREST-LITOVSK, 1915.
WWI: SIBERIAN TROOPS.
WWI: FRENCH SOLDIERS.
WWI: TRENCH MORTAR.
WWI: GAS WARFARE.
WWI: PRISONERS, 1915.
RUSSIAN VETERAN, 1890.
Bullet wound X-ray, early 20th century
WWI: HOSPITAL, c1915.
Photograph of Guangzhou Tang Lang Street by William Henry Jackson
WWI: FRENCH LINE OF DEFENSE.
WWI: BATTLE OF THE MARNE.
WWI: 369th REGIMENT, 1919.
WWI: ARGONNE, c1914.
WWI: SOLDIER, c1916.
WWI: SOLDIER, c1918.
WWI: BLANZY, 1918.
WWI: SOLDIERS, 1918.
WWI: SOLDIER AND HORSE.