Over a century later, it's difficult to imagine it was once a struggle to develop the tank. But the impact the very first tank had during World War I would have in shaping the future of combat can ...

Tanks used in the Second World War evolved significantly compared to the Great War, going from slow, cumbersome armored ...

However, as tank commander Horace Birks describes, they did not have the desired impact in the first two years of service; indeed they arguably posed more of a danger to their crews than the enemy.

Tanks were invented in Britain. Historian Dan Snow describes the earliest versions and charts how they developed and were increasingly used in battle during WW1. We hear how intrigued the British ...