Firaxis has released a deep dive video revealing Vietnam for Civilization 6.
Vietnam, which is part of the New Frontier Pass due out 28th January, is led by Bà Triệu, also known as Triệu Thị Trinh or Lady Triệu. Bà Triệu fought against the occupation of northern Vietnam by the Wu Kingdom in the early 200s AD.
Vietnam's unique ability is Nine Dragon River Delta, which makes all land speciality districts only buildable on rainforest, marsh or woods tiles. Buildings on each type of tile receive either additional science, production or culture. This ability also allows woods to be planted with the Medieval Faires civic.