Zheng-tong: Year 10, Month 3, Day 7
13 Apr 1445
The Teng-chong Military and Civilian Command was established in Yun-nan. Previously, the Jing-yuan Earl Wang Ji and the Commissioner-in-chief Mu Ang advised that as Teng-chong was a strategic point for Yun-nan, a military guard should be established to defend it. The Emperor ordered Ang and so on to deliberate fully on this. At this time, Ang and the military consultant and vice minister in the Ministry of Justice Yang Ning advised that the stationing of troops there needed to be long-term and would prove of advantage. The Emperor approved this. It was also ordered that a city-wall be built for Teng-chong and that Ang, Ning and the officials of the three offices supervise the construction until complete, and that government troops be deployed to provide defence. It was further ordered that the situation of the people be properly assessed, that they be shown concern and sympathy, and that they not be subject to pressure and annoyance causing them to lose their place.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 28, page 2530