One of the causes was that the pope gathered people to take back the lost holy land/ Jerusalem.
Its hurts everyone around you, what ever it is making you feel this, it isn't worth it to take it this far, and finally, you'll regret it when you realize how little you've accomplished and haven't done in your life. Then if you do go threw with it then expect to be greeted by the devil.
The government restricted the reservation lands by setting boundaries for each tribe
