Dr Jonathan Boff presents a series or articles and videos for BBC's iWonder.

1. The lessons of history - 100 years on from the start of the First World War,  the British Army is still learning about the conflict that shaped so much of our world today.
2. Battles than changed warfare - key battles of WWI that changed warefare.
3. Creating a fighting force - this new warfare called for a different kind of soldier and drove all armies to reassess and renegotiate their relationship with their troops.
4. Realities of battle - hear WW1 soldiers describe what it felt to go over the top.
5. Importance of strong bonds - the bond between soldiers is a crucial factor in enabling them to do their job.

• Vist BBC iWonder to read the articles