Mongol invasions of India invasions might give a better indication of the numbers involved, as these commanders probably led tumens, units nominally of 10,000 men. These invasions were led by either various descendants of Genghis Khan or by Mongol divisional commanders; the size of such armies was always between 10,000-30,000 cavalry although the chroniclers of Delhi exaggerated the number to 100,000-200,000 cavalry. After civil war broke out in the Mongol Empire in the 1260s, the Chagatai Khanate controlled Central Asia and its leader since the 1280s was Duwa Khan who was second in command of Kaidu Khan. Duwa was active in Afghanistan, and attempted
Society of the Mongol Empire to eliminate the overissue of the currency by Mongol and non-Mongol nobles since the reign of Great Khan Ögedei. His authority established united measure based on "sukhe" or silver ingot, however, the Mongols allowed their foreign subjects to mint coins in the denominations and use weight they traditionally used. During the reigns of Ögedei, Güyük and Möngke, Mongol coinage increased with gold and silver coinage in Central Asia and copper and silver coins in Caucasus, Iran and southern Russia.±±§ The Yuan dynasty under Kublai Khan issued paper money backed by silver, and again banknotes supplemented by cash and copper cash.