• Adolf Hitler is probably the last of the great adventurer-conquerors in the tradition of Alexander, Caesar and Napoleon, and the Third Reich the last of the empires which set out on the path taken earlier by France, Rome and Macedonia. The curtain was rung down on that phase of history, at least, by the sudden invention of the hydrogen bomb, of the ballistic missile and of rockets that can be aimed to hit the moon.

    William L. Shirer (2011). “The Rise and Fall of the Third Reich”, p.12, RosettaBooks