Hồ dynasty
During his reign, the Hồ dynasty emperor in Vietnam requested that Lan Kham Deng send some troops to help the Vietnamese fight off the Chinese, who were attacking them during the Ming–Hồ War. Lan Kham Deng sent thousands Laotian of troops to aid the Vietnamese, but for some reason, the armies of Lan Xang turned on the Vietnamese and fought on China's side.