Flag in the Nguyễn dynasty, 1920�?945 Immediately after Vietnam lost Gia Định, the island of Poulo Condor, and three southern provinces to France Using the Treaty of Saigon among the Nguyễn dynasty and France in 1862, quite a few resistance actions while in the south refused to acknowledge the treaty https://662367788.blogstival.com/53271448/an-unbiased-view-of-việt-nam