Bosnian Crisis Bosnia and Herzegovina had occupied Bulgarian Declaration of Independence Bulgaria Ottoman Empire Serbia Russia Europe Italy Balkans
Austrian statesmen viewed the Balkans as essential for the continued existence of their Empire, and saw Serbian expansion as a direct threat. The 1908–1909 Bosnian Crisis began when Austria annexed the former Ottoman territory of Bosnia and Herzegovina, which it had occupied since 1878. Timed to coincide with the Bulgarian Declaration of Independence from the Ottoman Empire, this unilateral action was denounced by the European powers, but accepted as there was no consensus on how to resolve the situation. Some historians see this as a significant escalation, ending any chance of Austria co-operating with Russia in the Balkans while also damaging diplomatic relations between Serbia and Italy, both of whom had their own expansionist ambitions in the region.
