varies
: Manchu, Mongol, Han Bannermen
Han Green Standard Army defectors (after 1644)
by 1648, Han Chinese Bannermen made up 75% of the Eight Banners while Manchus at only 16%.

varies

Shun dynasty army varies between 60,000 and 100,000 men

Zhang Xianzhong's army - 100,000 men

Casualties and losses

varies

unknown

Decisive Qing victory

Ming dynasty Supported by:
Joseon
Northern Yuan dynasty (1618–1635)
Yarkent Khanate (1646–1650)
Kumul Khanate

Shun dynasty

Li Zicheng
Ma Shouying

Shun dynasty army varies between 60,000 and 100,000 men

The Qing conquest of the Ming, also known as the Ming–Qing transition and as the Manchu conquest of China, was a period of conflict between the Qing dynasty, established by Manchu clan Aisin Gioro in Manchuria (contemporary Northeastern China), and the Ming dynasty of China in the south (various other regional or temporary powers were also associated with events, such as the short-lived Shun dynasty). Leading up to the Qing conquest, in 1618, Aisin Gioro leader Nurhaci commissioned a document entitled the Seven Grievances, which enumerated grievances against the Ming and began to rebel against their domination. Many of the grievances dealt with conflicts against Yehe, which was a major Manchu clan, and Ming favoritism of Yehe. Nurhaci's demand that the Ming pay tribute to him to redress the seven grievances was effectively a declaration of war, as the Ming were not willing to pay money to a former tributary. Shortly afterwards, Nurhaci began to rebel against the Ming in Liaoning in southern Manchuria.

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Wikipedia