The main thing that Hitler did in defiance of the Versailles Treaty that upset the world was to bring back the German military, which was explicitly against the rules of the military. His reasoning for this action was to preserve the national defense of Germany, although this soon led to the invasion of Poland, which led to war.
This is true - Italy has a aging population which is expected to life long - as is the case with most post-industrial societies, while Niger on the other hand expects its people to live not as long and at the same time has a younger population.
Answer:
Popular sovereignty
Explanation:
"The power to govern comes from the people," is a principle of the popular sovereignty doctrine.
