Flag with the Nguyễn dynasty, 1920�?945 Just after Vietnam shed Gia Định, the island of Poulo Condor, and 3 southern provinces to France Together with the Treaty of Saigon involving the Nguyễn dynasty and France in 1862, lots of resistance actions while in the south refused to acknowledge the treaty https://jaredpbjpw.blogs100.com/31494900/fascination-about-vf555