There should be a Hetalia character of South Vietnam. I'm Vietnamese myself and I know our history, North Vietnam and South Vietnam fought each other themeselves, of course with America supports the South and Russia and China supports the North.
White*Crow said: There should be a Hetalia character of South Vietnam.
Actually, that would be kind of amusing to see both South Vietnam and North Vietnam argue (in Hetalia of course). Then again, I'm Vietnamese myself, and know some history between those two. (Thanks to my parents, and History books)