The Wade- Davis Bill was introduced after the Civil War. The goal of this bill was to help the Confederate states rejoin the Union after meeting certain requirements.
In this case, the Wade- Davis Bill wanted a majority of the population within a respective southern state to take the Ironclad oath. This oath essentially says that these individuals never supported the Confederacy in the past. This oath was supposed to prove these citizens loyalty to the United States moving forward.
Even though this is passed in Congress, it is pocket vetoed by Lincoln and never gets implemented into US society.
I would love to help you answer this, but I'm afraid I need more information. This is a fragment, Try to explain what you need answered.
This region was also politically unstable as there were different ethnicities and there was also rising nationalism in the region. Nationalism brought about tensions. There was also rising Serbian nationalist groups. Combined with the brinkmanship of the European Powers the area became a fuse to the powder keg that Europe had become. The Balkans has strong Cultural, Religious, and language ties to the surrounding Empires but they were in small pockets making nation building difficult.