World+War+I+Project

Trench Warfare: [] or [] Machine Gun: [] or [] Submarine: [] or [] Tanks: [] or [] Chemical Warfare: [] or [] Airplane: [] or [] Zeppelins: []or [] Barbed wire: [] or []

Battle of the Marne: [] or [] Battle of Tannenberg: [] or [] Battle of Verdun: [] or [] Battle of the Somme: [] or [] Propaganda: [] Examples at [] Lawrence of Arabia: [] or [] Women in the workforce: [] or []