OTL, the May Coup in May 1903 was responsible for Serbia switching allegiance, leaving the pro-Austrian camp. What happens if it is a failure, or is not undertaken at all? What PODs would realize this? What long-term consequences stem from this?
(placed in pre-1900 to allow wider range of PODs to be discussed)
(placed in pre-1900 to allow wider range of PODs to be discussed)