The Trịnh–Nguyễn War lasted from 1627 right until 1672. The Trịnh Military staged at the least 7 offensives, all of which did not seize Phú Xuân. For your time, starting up in 1651, the Nguyễn by themselves went within the offensive and attacked aspects of Trịnh territory. The period is https://vitnam45556.bloggactif.com/31974168/việt-nam-an-overview