Imagine a nuclear strike taking out a city in today's age, without triggering further nuclear conflict.

That would be somewhat shocking, because the last time a nuclear strike occurred openly, the USA was basically the only nuclear option around. And as soon as they used their weapons, they were not any more.

Now think about the contrast of today's youth, against what has historically occurred with young men.

Look how quickly Hitler captured the heart of a population, then look at the scale of the republic, versus the planet.

Now look to space, and the future.