The Trịnh–Nguyễn War lasted from 1627 right up until 1672. The Trịnh army staged at the very least seven offensives, all of which failed to capture Phú Xuân. For just a time, beginning in 1651, the Nguyễn on their own went within the offensive and attacked portions of Trịnh territory.Its financial reforms because the beginning of Đ�