World War I

Americans maneuver Whippet tank near Verdun in 1918

Germans fire from trench on Belgian frontier

Soldiers hurl hand grenades during Battle of the Piave River

Canadian troops go over the top of trench in France

French soldiers assault German position near Champagne

Simulated gas attack during WWI

French soldiers use flamethrowers during WWI

French soldiers attack Germans with flamethrowers and gas

French troops on the Somme front

German machine-gun nest and dead gunner

Escape from torpedoed vessel during WWI

Aerial view of ruins of Vaux France in 1918

Philadelphia celebrates Armistice Day during WWI

Americans and Britons celebrate Armistice Day

Land mines laid during WWI

Gas attack in Flanders during WWI

Austro-Hungarian howitzer fires mortar during WWI

Germans learn to aim gas mortars during WWI

Machine guns readied for antiaircraft measures during WWI

WWI German Wotan tank

WWI German tank

WWI antiaircraft weapons flak battery

WWI trench

WWI trench and abandoned guns

German prisoners at Verdun during WWI

Human remains from combat at Verdun during WWI

Bones of German casualties at Dead Man's Hill in Verdun

British soldiers take under fire in trench during WWI

Transport of wounded from the Somme during WWI

Swiss soldiers fire from trench during WWI

WWI artillery position showing guns, ammunition shells, sandbags, and lean-tos

German trench during WWI Meuse-Argonne offensive

German soldiers fire from trench during WWI

German machine gunners man trench during WWI

German soldiers on horseback view abandoned British trench