Would Ottoman collapse turn the Balkans into militia warfare?

Would Allied troops have to garrison a Balkans reduced to chaotic militia warfare after Ottoman collapse?

Probably not; the region had strong local politics and would more likely divide among organized states with competing claims.

The answer distinguishes political fragmentation from total institutional collapse. Romania, Bulgaria, and other regional actors already possessed governments and political structures capable of organizing territory. Ottoman defeat would intensify competition and state formation, but the region would not automatically dissolve into ungoverned militia warfare. The likely result is a difficult multi-state settlement whose rivalries continue after their temporary wartime alignment.