First World War

A vintage colour postcard, possibly produced to send Christmas greetings from the frontline, somewhere on the Western Front, during the First World War, c1918. (Photo by Popperfoto/Getty Images)

Christmas 10 ways Christmas was celebrated during the First World War

Stretcher bearers at Passchendaele

The forgotten triumphs of Passchendaele

The Cunard liner Lusitania

How did Britain react to the sinking of the Lusitania?

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A scene from 'They Shall Not Grow Old', showing how film director Peter Jackson digitally remastered footage of the First World War. (Photo courtesy of THEY SHALL NOT GROW OLD/ WingNut Films/ Peter Jackson. Original black and white film © IWM)

“There was no feeling sorry for themselves”: director Peter Jackson on the soldiers of the First World War . This is a premium piece of content available to subscribed users.

Marshal Foch and his accompaniment leaving Compiègne in order to inform the French government in Paris about the Armistice agreement with Germany. (Photo by ullstein bild/ullstein bild via Getty Images)

First World War

Where was the Armistice signed?

11th November 1918: An army lorry in a London street on Armistice Day, carrying jubilant passengers. (Photo by Topical Press Agency/Getty Images)

11 November 1918: The day the world turned upside down

A British officer stands alongside two of his Japanese counterparts in 1914 in Tsingtao (now Qingdao). Japanese troops played a key role in the capture of that strategic German concession in north-east China. (Photo by Getty Images)

First World War: beyond the western front

Black and white image of Russian soldiers using a canon

Trial by fire: how a fortress siege changed the course of World War One

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A Russian battery at the siege of the Austrian-Hungarian fortress of Przemysl, 1 Oct 1914. (Photo by Hulton Archive-Getty Images)

The Fortress: An epic battle of World War I . This is a premium piece of content available to subscribed users.

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Britons. Join Your Country's Army! (Photo by Alfred Leete/ Imperial War Museums via Getty Images)

The death of Kitchener: a World War One mystery . This is a premium piece of content available to subscribed users.

Queen Victoria, her husband Prince Albert, and their nine children.

Q&A Could Queen Victoria have prevented World War I?

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South Vietnam 1967: Battle weary U.S. soldiers pause for a moment's rest after some of the bloodiest fighting of the Vietnam War (Photo by Bettmann/Getty Images)

War trauma . This is a premium piece of content available to subscribed users.

US soldiers in Vietnam

From the Napoleonic Wars to Vietnam and Iraq: a history of war trauma

Margaretha Geertruida Zelle called Mata Hari (Photo by Apic/Getty Images)

First World War

Mata Hari: exotic dancer, femme fatale, traitor and spy

Dornier 217 bombers of the Luftwaffe bomb London during the Battle of Britain.

9 of the most overrated battles in history (and one underrated one)