After about 300 years of partition by feudal dynasties, Vietnam was again under one single authority in 1802 when Gia Long founded the Nguyễn dynasty, but the country became a French protectorate after 1883 and under Japanese occupation after 1940 during World War II.
Efter ca. 300 års opsplitning af feudale dynastier var Vietnam igen kommet under en enkelt myndighed i 1802, da Gia Long grundlagde Nguyễn-dynastiet, men landet blev et fransk protektorat fra 1883 og under japansk besættelse efter 1940 under 2. verdenskrig.