The Battle of Fort Zhenjiang (Chinese: 鎮江之戰) was a military conflict between the Later Jin and the Ming dynasty.

Mao worked in conjunction with Joseon units and successfully damaged some Jin outposts.

[1] With 197 men on 4 ships, Mao arrived at Zhu Island, where he recruited commoners discontent with Jin rule.

Mao then sent spies to Fort Zhenjiang, where they made contact with commoners and set up signals to open the gate when ready.

With Ming supplies coming in from the sea, Mao was able to hold the fort against Jin assaults for some time.