They were upset because the law forbade them from settling in the Ohio River Valley where there was fertile soil for farming, and the Native Americans weren't using it, plus many colonists had already bought land west of the Appalachians and now weren't allowed to move. Many colonists did not respect the Native Americans and did not want to preserve their land. The colonists just ignored the law and moved across the Appalachians.
They should live following the eightfold path. Otherwise known as the middle way.
Its a. Germany has nothing to do with the league of nations. They werent involved