But Huệ decided to submit himself as vassal of Qing China and agreed to pay tribute annually.
If not, Tây Sơn dynasty would fall in a two-front war with both Qing China and Siam.
[1] In order to gain support from Qing China, Nguyễn Huệ promised that he would go himself to have an audience with Qianlong Emperor.
[1] He reached Beijing, then to Chengde Mountain Resort, to celebrate eightieth birthday of Qianlong.
Before he returned to Vietnam, Qianlong ordered an imperial artist to draw a portrait of him as a gift.