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Subject
- Battlefields11
- Battles[remove]11
- World War (1914-1918)10
- Artillery6
- Intrenchments6
- Soldiers6
- Trenches4
- Military weapons2
- Tactics2
- Battle of Ypres (3rd) (Ieper, Belgium : 1917)1
- Battle of the Somme (1st) (France : 1916)1
- Bombardment1
- Canada. Canadian Army1
- Fortification1
- Gases, Asphyxiating and poisonous--War use1
- Machine guns1
- Projectiles1