The Trịnh–Nguyễn War lasted from 1627 right up until 1672. The Trịnh army staged not less than 7 offensives, all of which didn't seize Phú Xuân. For a time, beginning in 1651, the Nguyễn on their own went on the offensive and attacked aspects of Trịnh territory. It is possible https://marieu742owf9.dailyblogzz.com/profile