WORLD WAR I: SUBMARINE.
WORLD WAR I: SURRENDER.
WORLD WAR I: U-BOAT
WORLD WAR I: U-BOATS.
WORLD WAR I: FRENCH SHIP.
WWI: GERMAN SUBMARINE.
World War I Submarine
WORLD WAR I: U.S. NAVY.
WORLD WAR I: SUBMARINES.
Submarine in dry dock, during World War One.
WORLD WAR I: LUSITANIA.
WORLD WAR I: VIEW OF FLEET.
WORLD WAR I: BATTLESHIP.
WORLD WAR I: TORPEDO.
World war One French naval submarine.
WORLD WAR I: BALLOON.
WORLD WAR I: THE EX-KAISER.
WORLD WAR I: SURRENDER
SHIPWRECK, c1916.
WWI: AMERICAN STEAMER.
WORLD WAR I: LEVIATHAN.
WWI: U-BOAT CAPTURE.
WORLD WAR I: ZEPPELIN.
WORLD WAR I: VLADIVOSTOK.
WORLD WAR I: PRESIDENT.
WORLD WAR I: AIRPLANE
WORLD WAR I: U-BOAT, 1916.
WORLD WAR I: U-BOAT, 1915.
WORLD WAR I: HMS E11, c1915.
WORLD WAR I: TSINGTAO.
WORLD WAR I: TROOPS.
WORLD WAR I: GERMAN U-BOAT.
WORLD WAR I: TURKISH ARMY.
WWI: NAVAL BATTLE, 1918.
WORLD WAR I: FRANCE, c1917.
WORLD WAR I: BELLEAU WOOD, 1918.
WORLD WAR I: GERMAN DUGOUT.
WORLD WAR I: AIRSHIPS.
German submarine, U-26, chasing and bringing up the Zaanstroom.
WORLD WAR I: HEAVY GUN.
WORLD WAR I: SAILING.
WORLD WAR I: DUN-SUR-MEUSE.
WORLD WAR I: MUELHOUSE.
RMS Lusitania Cunard Line ocean liner, torpedoed and sunk by a German submarine in 1915, during World War One
WORLD WAR I: USS GRAYLING.
WORLD WAR I: GALLIPOLI.
OREGON: PORTLAND HARBOR.
WORLD WAR I: JIAOZHOU.
WORLD WAR I: PLANE CRASH.
WORLD WAR I: CAMOUFLAGE.
WORLD WAR I: REVOLUTION.
WORLD WAR I: RECRUITING.
WORLD WAR I: NAVAL MINES.
WORLD WAR I: BRITISH TANK.
WORLD WAR I: ITALIAN FRONT.
WORLD WAR I: SHELL FACTORY.
WORLD WAR I: VICTORY MARCH.
WORLD WAR I: ALEXANDRIA.
WORLD WAR I: DARDANELLES.
WORLD WAR I: AIRFIELD.
WORLD WAR I: AIRPLANES.
WORLD WAR I: SENEGALESE.
WORLD WAR I: TOUR, C1918.
WORLD WAR I: RUINS, c1919.
WORLD WAR I: ARMISTICE, 1918.
WORLD WAR I: HMS HERCULES.
WORLD WAR I: FRENCH CRUISER.
HMS E11 was an E-class submarine.
WORLD WAR I: DEUTSCHLAND.
Captured German U-boat, World War I
WORLD WAR I: ITALIAN NAVY.
WORLD WAR I: RETURN HOME.
The German submarine U-155 on display in saint Katherine docks, London, England at the end of World War One
World War One.
WORLD WAR I: AIRSHIP, 1917.
WORLD WAR I: AMERICANS.
WORLD WAR I: TRAINING.
WORLD WAR I: CAMEROON.
WORLD WAR I: CASUALTIES.
WORLD WAR I: OCCUPATION.
WORLD WAR I: COLOGNE.
WORLD WAR I: SPARTACISTS.
WORLD WAR I: VOSGES.
WORLD WAR I: DREADNOUGHT.
WORLD WAR I: FRENCH TANKS.
WORLD WAR I: FRENCH TANK.
WORLD WAR I: VIMY RIDGE.
WORLD WAR I: MESSENGER DOG.
WORLD WAR I: ROMANIAN ARMY.
WORLD WAR I: CAMP MEADE.
WORLD WAR I: VAUX, 1918.
WORLD WAR I: BERLIN, 1914.
WORLD WAR I: SERVICE CROSS.
WORLD WAR I: REVIEW, 1918.
WORLD WAR I: MACHINE GUNS.
WORLD WAR I: ALLIED FORCES.
BRITISH AIRCRAFT CARRIER.
WORLD WAR I: TREVES, C1918.
WORLD WAR I: DRILLS, C1919.
WORLD WAR I: BERLIN, c1919.
WORLD WAR I: RUSSIA, C1917.
WORLD WAR I: FRANCE, c1915.
WORLD WAR I: SEAPLANE.
WORLD WAR I: FLOODING.
WORLD WAR I: USS OKLAHOMA.
WORLD WAR I: BRITISH SHIP.
WORLD WAR I: PLANE REPAIR.
WORLD WAR I: AISNE, 1917.
WORLD WAR I: PETROGRAD.
WORLD WAR I: ITALIAN ALPS.
WORLD WAR I: VARENNES.
WORLD WAR I: U.S. MARINES.
The Petr Kochka submarine.
Spanish Civil War submarine B-6, C class of the Republican navy.
Submarine, illustration
WORLD WAR I: GERMAN POWs.
WORLD WAR I: MORTAR.
WORLD WAR I: CELEBRATION.
Survivors of the Lusitania destroyed by German attack.
WORLD WAR I: GERMAN MORTAR.
WORLD WAR I: RUINED CHURCH.
WORLD WAR I: MEETING
Q-ship, designed to lure submarines into making surface attacks, during the First World War.
British Royal Navy ship carrying mines for attacking submarines, during the First World War.
WORLD WAR I: QUAI D'ORSAY.
WORLD WAR I: EXPLOSION.
WORLD WAR I: DESTRUCTION.
WORLD WAR I: BIPLANE.
WORLD WAR I: GAS MASKS.
WWI: HOSPITAL, c1916.
German Airplanes attacking Fleet of Ships, World War I Postcard, circa 1915
WORLD WAR I: AERIAL BATTLE.
WORLD WAR I: TRIESTE
WORLD WAR I: CAVALRY.
WORLD WAR I: NAVAL FLEET.
WORLD WAR I: SIGNAL STATION.
WORLD WAR I: CEMETERY.
WORLD WAR I: FORT.
WORLD WAR I: PRISONERS.
WORLD WAR I: YPRES.
German submarine officer looks through a periscope.
British submarine officer looks through a periscope.
British naval ships attacked by German submarine.
WORLD WAR I: PARIS.
WORLD WAR I: AISNE RIVER.
WORLD WAR I: BERLIN, C1918.
WORLD WAR I: PALESTINE.
WORLD WAR I: EGYPT.
WORLD WAR I: DIRIGIBLE.
WORLD WAR I: ARMISTICE.
Photograph of British children being evacuated