Sichuan's governor Yu Jie adopts the plan …
Years: 1236 - 1236
Sichuan's governor Yu Jie adopts the plan of the brothers Ran Jin and Ran Pu to fortify important locations in mountainous areas, like Diaoyucheng (modern Hechuan/Sichuan).
From this point, Yue Jie will be able to hold Sichuan for a further ten years.
