Both presented Tsar Ferdinand with a draft of a military agreement between the Central Powers and Bulgaria.The Entente diplomacy did not sit idly by, either. It was only after the signing of the Treaty of Constantinople that the army was able to complete the process of its demobilization and assu…
Around this time the total surface area of the kingdom was 114,424 square kilometers and its population stood at 4,930,151 people, out of whom 2,484,122 were males.The mobilization was carried out behind the established schedule because the nature of Colonel Ganchev's mission to Germany was held in great secrecy to the last moment, even from the Bulgarian General Staff, which was left out of the negotiations completely. Many of the divisions had to be brought down to their usual peace strength and re-deployed to cover the Ottoman border.
Germany and Austria-Hungary in particular were weighing the possibility of encouraging immediate Bulgarian intervention against Serbia, because the neutrality of Italy and Romania, countries that had been their allies prior to the outbreak of the war, was a major defeat for German and Austrian diplomacy. The Russian government was still trying to build a new Balkan League that would include Serbia, Montenegro and Bulgaria.The Russians were also restrained in their activity due to their allies, especially France, which preferred the cooperation of Romania rather than Bulgaria. Nevertheless, relations with the Balkan states remained strained due to their fear of Bulgarian The most active Entente power in the Balkans was Russia, which sought to limit Austro-Hungarian influence in the area by creating a new Balkan League that was to include Serbia, Montenegro and possibly Romania and Bulgaria. The Land Forces practice extensive year-round military training in various conditions. Once again the promises lacked a clear guarantee that Serbia would cede the desired lands and there was not even a mention of Southern Dobrudja. The largest institutions of military education in Bulgaria are: The diplomatic positions of the Central Powers in Sofia were strengthened immensely, forcing the Bulgarian tsar and prime minister to assume a course towards a final alignment of the country to the side of the Central Powers. As it happened, the Ottomans did not intervene and the Serbian army's advance was stopped after the Instability in the Balkan region in the early 1900s quickly became a precondition for a new war. The army suffered 300,000 casualties, including 100,000 killed, the most severe per capita losses of any country involved in the war. On 14 October, with most of the preparations completed, Bulgaria finally declared war on Serbia and officially entered the First World War.