George Bush became the president after Thomas Jefferson
Yes, every country still needs a government. People are like sheep walking around with out a leader or authority. If the government were to disappear, the worlds citizens would go into a Chaotic downfall. Crime rates would sky rocket up. And the economy would fail. Too many people around the world rely on their governments for assistance like unemployment checks and protection from foreign threat.
A) The rise of fascism.
Hitler gained power by heavily opposing the treaty of versailles and being an extreme nationalist making promises to return Germany to a global superpower. People wanted a change so they voted for him.
Possibly allies and they way they interacted with other countries, by trade etc. and strengthening their economy for war.