Stop, stop, stop. talk too much. Go and ask Zheng Chenggong and his navy what Chinese did during the Grand Sail, How Chinese did business with Spanish, Portuguese, Dutch in Philippines, Indonsiea islands and SCS! Go and ask Zheng He what Ming Chinese Navy did in SCS, Indian Ocean and even in Somlia? Ok, maybe he didnt sail to Somlia but flied to there... What did Vietnam do at that time? Vietnam was a part of China during Ming! As the situation Vietnam didnt want to stay with China, so just leave China as Vietnam wish, just had a good leave. No one wants to stay together but have different heart! Hainan was officially managed by China since Han(West) Dynasty, Qin Empire just found it. That is right. Whatever people Think SCS belongs to Vietnam or China, If Vietnam now wants to have oil in SCS, so just say it, both sides sit down and have a talk(they are doing that now) China will take into account and give a share with Vietnam. Or Vietnam can take over those islands by force, easy. Just two ways, sit down and talk, both sides can cooperate and earn Money together. Or Vietnam take over by force, and the chance to win is 0%. Everyone can analyze it, so no need to talk those stupid topic everyday and no one want a war!