Vietnam and China have never been "socialist brothers", and even just brothers. They are adversaries on the civilizational level, 17 big wars during the last 20

Vietnam and China have never been "socialist brothers", and even just brothers. They are adversaries on the civilizational level, 17 big wars during the last 20 centuries, half of them for Vietnamese independence. The last armed conflict happened in 1989, when China occupied disputed islands in the South-China sea. Vietnam would side to anyone against China (source: I live here)