Lê Lợi fortified Thiên Nhẫn mountain opposite the Nghệ An citadel and won over all twenty districts of the prefecture; a Ming relief fleet arrived on 2 May 1425, but its sortie was ambushed at the Khuất river and the garrison stayed shut in.
Siege
Siege of the Nghệ An citadel
- 1425 – 1427
- Southeast Asia