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History of the United Kingdom during the First World War
British Army during the First World War - Wikipedia
British entry into World War I - Wikipedia
Why Did Britain Enter World War One? - History Hit
Overview: Britain and World War One, 1901 - 1918 - BBC
World War I | History, Summary, Causes, Combatants, Casualties, …
World War I: Summary, Causes & Facts | HISTORY
10 Significant Battles Of The First World War
The Commonwealth and the First World War - National Army …
First World War - Stories, Photographs, Film & Documents | IWM