12/12 Historian David Olusoga explores two fascinating aspects of WW1.
11/12 Saleyha Ahsan explores some of the aspects of medical care in WW1.
10/12 Dr. Sam Willis investigates two of the war's most hi-tech and deadly elements.
9/12 Dan Snow examines myths about class in the British military, and life in the trenches.
8/12 Dan Snow looks at how the aeroplane rapidly became a weapon of war.
7/12 Who’s to blame for WW1? The main players cross swords, spitting rhymes and insults.
6/12 The highs and lows of a soldier's visit to the notorious red-lit maisons tolérées.
5/12 How dogs, pigeons, seagulls, sea lions, elephants and even glow worms helped to fight.
4/12 Dan prepares for a close encounter with some of the deadliest weapons of World War One.
3/12 In the First World War, it wasn't easy to get out of the trenches.
2/12 An army was as good as the kit its soldiers wore to fight and the food they had to eat.
1/12 The battlefields of the First World War were full of trenches and barbed wire. Why?