Various sources and estimates put Pagan's military strength anywhere between 30,000 and 60,000 men. One inscription by Sithu II, who expanded the empire to its greatest extent, describes him as the lord of 17,645 soldiers while another notes 30,000 soldiers and cavalry under his command. A Chinese account mentions a Burmese army of 40,000 to 60,000 (including 800 elephants and 10,000 horses) at the battle of Ngasaunggyan in 1277. However, some argue that the Chinese figures, which came from eye estimates of a single battle, are greatly exaggerated. As Harvey puts it: the Mongols "erred on the side of generosity as they did not wish to diminish the glory in defeating superior numbers". But assuming that the precolonial population of Burma was relatively constant, the estimates of 40,000 to 60,000 of the "entire military" are not improbable, and are in line with figures given for the Burmese military between the 16th and 19th centuries in a variety of sources.