Why is the EU taking so long to admit Western Balkan states?

Why is the EU taking so long to admit Western Balkan states?

EU leaders are meeting in Slovenia to discuss membership of the bloc for six nations in the Western Balkans. Bodo Weber from the Democratization Policy Council weighs in. #Balkanstates #EU #Slovenia Subscribe: http://trt.world/NOW Livestream: http://trt.world/ytlive Facebook: http://trt.world/facebook Twitter:   / trtworldnow   Instagram: http://trt.world/instagram Visit our website: http://trt.world