Battle of Đồng Đăng: French victory over China in Tonkin
- When
- 1885
- Where
- Battle site; Unresolved site of the Gate of China
- Episodes
- 2
The Battle of Đồng Đăng occurred on 23 February 1885 during the Sino-French War. French forces defeated the Guangxi Army, clearing them from Tonkin. This victory followed the capture of Lạng Sơn, allowing French troops to be diverted to relieve the siege at Tuyên Quang.
Episodes
- Battle of Đồng Đăng
French forces defeated the Guangxi Army on 23 February 1885, clearing them from Tonkin after resupplying the 2nd Brigade.
- Destruction of the Gate of China
A passage heading records the destruction of the Gate of China on 25 February 1885.
Background and detail
Background. The conflict was part of the Sino-French War, fought between the French Third Republic and the Qing dynasty for influence in Vietnam. Tonkin was considered a crucial foothold in Southeast Asia. The battle occurred during the Lạng Sơn Campaign, where the French captured the Guangxi Army's base, enabling forces to be diverted to relieve the isolated French garrison in Tuyên Quang.
Command. General Brière de l'Isle replaced General Millot as general-in-chief of the Tonkin expeditionary corps in early September 1884. De Négrier commanded the 2nd Brigade, which defeated the Guangxi Army at Đồng Đăng after resupplying with food and ammunition.
Aftermath. The victory cleared the Guangxi Army from Tonkinese territory. However, three weeks later, Chinese forces attacked the Đồng Đăng garrison, precipitating events that led to the French defeat at the Battle of Bang Bo on 24 March 1885.
People involved
- de Négrier · Commander of the 2nd Brigade
- Brière de l'Isle · General-in-chief of the Tonkin expeditionary corps
- Millot · Former general-in-chief of the Tonkin expeditionary corps
Sources
- Battle of Đồng Đăng (1885) Wikipedia, revision of 2026-08-22
- Sino-French War Wikipedia, revision of 2026-09-12
- Tonkin Wikipedia, revision of 2026-08-29
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.