Trịnh–Nguyễn Division and North–South Standoff in the 1620s

Name: Trịnh–Nguyễn Division and North–South Standoff in the 1620s
Start: 1620
End: 1629

Type Event Region Southeast Asia Time 1620–1629

In the 1620s, the Later Lê dynasty nominally survived while real power split between the northern Trịnh and southern Nguyễn;…

Timeline

1620Thăng Long (Hanoi) · Northern VietnamIn 1620, the northern Trịnh lord Trịnh Tráng led a large army south under the banner of 'supporting the king,' attempting to destroy the southern Nguyễn forces and unify Vietnam; this launched the long-term Trịnh–Nguyễn military confrontation.
1621–1627Quảng Nam–Huế front · VietnamBetween 1621 and 1627, Trịnh forces repeatedly marched south while Nguyễn forces resisted, relying on the natural defenses and fortifications of Huế; the two sides fought repeatedly in Quảng Nam and Nghệ An without either achieving a decisive victory, solidifying the north–south division.
1627–1629North–South boundary of Vietnam · VietnamAfter the First Trịnh–Nguyễn War ended in 1627, a truce established the 'Nguyễn in the south, Trịnh in the north' division: the Trịnh controlled Thăng Long and the Red River Delta, while the Nguyễn held Quảng Nam and expanded southward; the Later Lê emperor became a political symbol jointly maintained by both sides.

Trịnh–Nguyễn War https://en.wikipedia.org/wiki/Tr%E1%BB%8Bnh%E2%80%93Nguy%E1%BB%85n_War
Taylor, Keith W. A History of the Vietnamese — Keith W. Taylor (2013)