Starting with the Xiongnu, Turks organized their armies in decimal units of 10, 100, and 1000. Each of these units was commanded by officers titled, respectively, “onbasi”, “yuzbasi”, and “binbasi”. A unit of 10,000 was called “tumen”. Chinese sources also mention that the Uighur Empire’s army had women warriors on horseback who were very skillful at archery. The Ottoman army corps included the Janissaries, the Cavalry, the Mehteran and the Akinci. Possessing one of the most powerful armies of its time, the Ottomans were ahead of most other countries in utilizing muskets and cannons while in military campaigns. Blaming the Janissaries for military losses and lack of commitment, Mahmud II abolished and replaced them with the Nizam-i Cedid in 1826