China Marches WestFrom about 1600 to 1800, the Qing empire of China expanded to unprecedented size. Through astute diplomacy, economic investment, and a series of ambitious military campaigns into the heart of Central Eurasia, the Manchu rulers defeated the Zunghar Mongols, and brought all of modern Xinjiang and Mongolia under their control, while gaining dominant influence in Tibet. The China we know is a product of these vast conquests. Peter C. Perdue chronicles