The Habsburg Empire was approved of temporary occupy Bosnia-Herzegovina on the Berliner Conference. Accordingly to the Article 25 of the Berliner Treaty and the agreement between Vienna and Istanbul on April 1879, Bosnia-Herzegovina was still under sovereignty of the Ottoman Empire. The Habsburgs executives maintained this provisional status in both provinces until 1908. Furthermore, Bosnia-Herzegovina was a common administrative district (in German, Reichsland) between Austria and Hungary. The Habsburg Empire finally declared the annexation of Bosnia-Herzegovina on 6 October 1908. Alois Lexa Aehrenthal, Common Foreign Minister of the Habsburg Empire, become the focus of researcher for this theme. But I point out that it was István Bur...