Don't have Telegram yet? Try it now!
https://yuyencia.org/2018/08/11/%e7%ae%80%e8%ae%ba%e5%bc%a0%e5%ae%b6%e5%8f%a3%e5%9c%b0%e5%8c%ba%e7%9a%84%e4%b8%bb%e6%9d%83%e5%bd%92%e5%b1%9e/
简论张家口地区的主权归属