Ligdan Khan
Not all Upper Mongols are Khoshut Oirats; there are a few Khalkha, Choros and Torghuts. The Ligdan Khan came to Upper Mongolia with 150,000–200,000 Chahar people (30,000–40,000 soldiers) and his ally Tsogt Taij came with 40,000 Khalkha soldiers, but 70%–90% of them were killed by disease and by the Güshi Khan's army. Upper Mongolia had 29 hoshuns (21 Khoshut, 2 Choros, 4 Torghut, 1 Khalkha) in the early 20th century. Now there are 9 hoshuns of the Upper Mongols. 80,000–90,000 Upper Mongols live in the Qinghai region and 10,000 Upper Mongols live in Subei Mongol Autonomous County (2010).