04 Dez Buchlau Agreement 1908
Serbia acknowledges that it was not violated by the fait accompli created in Bosnia and Herzegovina and will therefore stick to the decision taken by the powers with regard to Article 25 of the Berlin Treaty. Serbia, which submits to the Council of the Great Powers, is already committed to abandoning the attitude of protest and opposition it has maintained towards the annexation since last autumn, and commits to further change the course of its current policy towards Austria-Hungary, in order to live with it on a good neighbourly basis. In accordance with these statements and confident by the peaceful intentions of Austria-Hungary, Serbia will reduce its army to the position of spring 1908 in terms of organization, distribution and impact. It will disarm and disband its volunteers and gangs and prevent the creation of new units of irregularities in its territories.  On July 2, 1908, Russian Foreign Minister Alexander Izvolsky sent a letter to the Austro-Hungarian Foreign Minister, Aloïs Aehrenthal, and proposed a discussion on reciprocal changes to the 1878 Berlin Treaty in favour of Russia`s interest in the Constantinople route and Austro-Hungarian interests in the annexation of Bosnia and Herzegovina and the Sanjak of Novi. On 14 July, Aehrenthal reacted cautiously to the proposed discussions.  On September 10, after long and complex discussions within the imperial government, during which Izvolsky`s proposals for Austria and Hungary were discussed, Aehrenthal sketched out a slightly different set of counter-proposals: he proposed that Austria-Hungary withdraw its troops from the Sanjak in exchange for a Russian friendly attitude when Austria-Hungary annexed Bosnia and Herzegovina. The letter then proposed to discuss the Straits issue on a friendly basis in a separate case. Aehrenthal suggested that if an agreement on Bosnia and Herzegovina was reached, his government would not automatically decide with the other powers to support the Ottoman Empire`s opposition (until the war) to such a proposal.
 an international conflict triggered by the annexation of Bosnia and Herzegovina by Austria-Hungary on 7 October 1908, provinces inhabited by Serbs and Croats and placed under Austro-Hungarian occupation in accordance with the decisions of the Berlin Congress of 1878. With the annexation of these provinces, which were nominally under the sovereignty of the Turkish sultan until October 1908, Austro-Hungarian government circles tried to deal a blow to the growing national liberation movement of the Slavic nations south of the Habsburg monarchy. Before the crisis, an agreement had been reached in September. 16, 1908, in Buchlau (Austria-Hungary) between A. P. P. Izvol`skii, Russian Foreign Minister, and A. Aehrenthal, Minister of Foreign Affairs of Austria-Hungary, whose Tsarist government has promised not to protest the Austro-Hungarian annexation of Bosnia and Herzegovina, in exchange for supporting the Russian plan to open the Black Sea route to allow the passage of Russian ships.