/biz/ - Business & Finance

>>15188557
"great wall of china" is a series of many walls, and they did a terrible job of protecting the middle kingdom (multiple times throughout the centuries)

also parts of it have been torn down and then rebuilt quite a few times in history

there are tons of chinese dynasties started by northern invaders (Qing, Yuan, Japanese puppet states) in fact its a common theme, small but superior northern army invades vastly populated but inferior quality army of the south