Lol, you claim that Yunnan was ancient land of Vietnam, we claim Vietnam was ancient province of China under the name of An Nam...and since we both claim each other's land...we might as well reunite so that will make your claim as valid as mine, a win-win
for both.
And FYI, Vietnam and Korean eligible to be called Han...since both use the same family and name structure as Chinese such Nguyễn Phú Trọng (阮富仲) or are SK president Park Geun-hye (
朴槿惠) and share a lot of same family names, only reinstated back your ancient writing and we will be back again as a big family..and then you can cozy with your South China brother such Teachew, Hakka, Fujian...Hainam