The Greek army destroys an Ottoman army in a 7 day battle from 24th to 30th October 1912 during the Balkan Wars. The Ottoman Empire at the height of its power Imperial motto El Muzaffer Daima The Ever Victorious (as written in tugra) Official language Ottoman Turkish Capital İstanbul ( Constantinople/Asitane/Konstantiniyye ) Sovereigns Sultans of the Osmanli Dynasty Population ca 40 million Area 12+ million km² Establishment 1299 Dissolution October 29, 1923... The outcome as of April 1913 The Balkan Wars were two wars in South-eastern Europe in 1912-1913 in the course of which the Balkan League (Bulgaria, Montenegro, Greece, and Serbia) first conquered Ottoman-held Macedonia and most of Thrace and then fell out of fellowship over the division...