Our world has been shaped by two all-consuming conflicts - and by a global superpower stand-off that brought the world to the brink of destruction.
Explore the in-depth sections below.
The causes, events and people of the conflict dubbed the 'war to end all wars'.
Genocide Under the NazisWhy did Nazi Germany kill millions who did not conform to its ideas of racial-biological 'purity'?
World War TwoThe causes, events and people of the most destructive war in history.
Cold WarEspionage, proxy wars and nuclear deadlock - the conflict that almost ended it all.
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