Shell shock is basically PTSD and it was thought to be caused by soldiers being exposed to explodeing shells
Answer: The French Revolution was a lot more bloody than the American Revolution.
If you mean middle eastern countries the problem with them gaining independence is that they govern solely based on religion (or Shariah law). This limits freedom of expression. An example of this is that if you're gay, or don't subscribe to the Muslim religion you are executed. In extreme cases such as the middle east it can be a very cruel religion. That's why it's so controversial. You should also check out the youtuber Eazyonme. He used to live in Pakistan, which is a Muslim country and speaks about the messed up stuff that goes down there because of Shariah Law. I hope this helped you.