Trịnh–Nguyễn War
| Trịnh–Nguyễn War | ||||||||||
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| Part of Civil Wars in Vietnam | ||||||||||
Map of Vietnam circa 1650 Nguyễn Mạc as rump state Kingdom of Champa . | ||||||||||
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| Belligerents | ||||||||||
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Trịnh lords VOC |
Nguyễn lords Portuguese Empire | Tây Sơn peasant revolt (1771–1775) | ||||||||
| Commanders and leaders | ||||||||||
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Trịnh Tráng Trịnh Tạc Trịnh Căn Lê Văn Hiểu Đào Quang Nhiêu Pieter Baeck † Jan Erntsen † 1774–1775: Trịnh Sâm Hoàng Ngũ Phúc |
Nguyễn Phúc Nguyên |
Nguyễn Huệ Nguyễn Nhạc Nguyễn Lữ | ||||||||
The Trịnh–Nguyễn Civil War (Vietnamese: Trịnh-Nguyễn phân tranh; chữ Hán: 鄭阮紛爭, lit. Trịnh–Nguyễn contention) was a prolonged civil war and conflict during the 17th–18th centuries waged between the two ruling families in Vietnam, the Trịnh lords of Đàng Ngoài and the Nguyễn lords of Đàng Trong, centered in today's Central Vietnam. The wars resulted in a long stalemate and century of peace before conflicts resumed in 1774 resulting in the emergence of the Tây Sơn forces following Trịnh Lords at the time, Nguyễn Lords collapsed in Saigon in 1777. During the division of Vietnam, Gianh River was used as the de facto border between both sides in peacetime.