The Balkans Heat Up
The Ottoman Empire went to war with Italy in October 1911. Taking advantage of the Italo-Turkish conflict, the entire Balkans makes moves to reject Ottoman rule. Serbia form an alliance with Bulgaria in March 1912 and signed a military agreement with Greece in June 1912. Serbian King Nicola I Petrovic made a verbal agreement with the Bulgarian king regarding military support against the Ottoman Empire. In September 1912 Montenegro announced an agreement was signed stating that Serbia and Montenegro would support each other militarily in case of attack by Ottoman forces. Greece and Bulgaria strengthened their defense alliance with details for conditions and procedures for mobilization of their armed forces.
On October 2, 1912 Serbia, Montenegro, Greece and Bulgaria sent an ultimatum to Ottoman government in Constantinople over military movements in Macedonia and Thrace.