喀尔喀蒙古
The Khorchin Mongols allied with Nurhaci and the Jurchens in 1626, submitting to his rule for protection against the Khalkha Mongols and Chahar Mongols. 7 Khorchin nobles died at the hands of Khalkha and Chahars in 1625. This started the Khorchin alliance with the Qing.