A second account of the fighting reported that the Vietnamese split their forces after the capture of the Lao capital intent upon continuing the offensive and conquering the "mandala" Lan Na by means of a pincer attack. In this chronicle, the Vietnamese troops in the south were defeated by fresh troops from Lan Xang along with an army from Nān, a vassal state of Lan Na; meanwhile the Vietnamese troops in the north withdrew voluntarily after negotiations and/or under the threat of an invasion from the Chinese.