1. It refers to pitch. 2. Set up an important town for saving envoys. 3. It generally refers to the fortress where the military commander is stationed.
Song · Li Tao's "Continuation of Zizhi Tongjian, Three Years of Emperor Taizong's Zhidao": "At the beginning of the country, Jiezhen was stopped to unify the sub prefectures, and the transfer envoys led the affairs of all roads, but its separation and integration were not customized."
Ming · Kong Zhenyun's epitaph of the Minister of War of the Ming Dynasty, Huan Yuangong (Yuan Keli): "The government and the field push the hub, and the emperor calls Yu Zai. The moon is sublimated, and Donglai is celebrated."
Qu Yueyuan's "Overview of Official Systems in Past Dynasties - Song Dynasty": "In the Tang Dynasty, Jiezhen still retains its military name, and there are also new military names, which are called Jiedu Prefecture."
