Bulgaria By hayhey3 Period: Jul 28, 1914 to Nov 11, 1918 Bulgaria in WWI Oct 14, 1915 Bulgaria declares war on Serbia Nov 10, 1915 The Kosovo Offensive Operation- Bulgarian victory; final defeat of Serbia Aug 5, 1916 The First Battle of Doiran- Bulgarian victory over Allies blah blah hey didly do whaTS UP my peeps hey yo Sep 20, 1916 Bulgaria takes Dobruja from the Romanians Oct 29, 1916 The Battle of the River Cherna- Bulgarian defeat against Allies Feb 9, 1917 The Second Battle of Doiran- Bulgarian victory over Allies May 18, 1917 The Battle of the Red Wall- Bulgarian victory over France Mar 3, 1918 The Treaty of Brest-Litovsk- signed to mark Russia's exit from WWI Sep 15, 1918 The Battle of Dobro Pole- Bulgarian defeat against Allies Sep 18, 1918 The 3rd Battle of Doiran- Bulgarian defeat against Greece and Britain Sep 29, 1918 Armistice with Bulgaria- signed with Allies; ceasefire