The Tr?nh–Nguy?n War lasted from 1627 until 1672. The Tr?nh army staged at least 7 offensives, all of which did not seize Phú Xuân. For any time, starting in 1651, the Nguy?n them selves went around the offensive and attacked elements of Tr?nh territory.After assembling an army, he defeated and overthrew the eighteenth dynasty on the Hùng king