Answer:
They didn't want all of those horrible events to be something they, or anyone else, had to remember.
It was because they controlled propaganda in Germany. They were able to manipulate propaganda that they convinced the people to support the Nazi
party. They were able to tap into the anxieties
and frustrations of the people that they were able to control them.
It can survive in any environment because we have our own democracy.
The two empires have traded for 1800 BC and they have gone to the place between China and Russia to trade. They traded happiness flies food clothing etc however some people died in the journey of trying to trade.