Answer to Your Question
The commander of Austro-Hungarian forces in Bosnia-Herzegovina at the start of WW1 was Oskar Potiorek. He played a significant role in the events leading up to the war, including the assassination of Archduke Franz Ferdinand.
Additional Context
Oskar Potiorek was a prominent figure in the Austro-Hungarian military and served as the governor of Bosnia-Herzegovina from 1911 until 1914. His actions and decisions during this period contributed to the escalation of tensions in the region.