Flag with the Nguyễn dynasty, 1920�?945 Following Vietnam missing Gia Định, the island of Poulo Condor, and a few southern provinces to France with the Treaty of Saigon between the Nguyễn dynasty and France in 1862, several resistance movements within the south refused to recognize the treaty and continued to https://vf55500111.blogminds.com/an-unbiased-view-of-việt-nam-28605050