Treaties and establishment of French Indochina (1862–1887)

Start

End

Sep 1, 1858

Franco-Spanish forces attack Tourane (Da Nang)

Franco-Spanish expeditionTourane N

Feb 18, 1859

French forces seize Saigon

SaigonFrench forces

Jun 5, 1862

First Treaty of Saigon cedes three provinces

Treaty ofNguy n

Apr 14, 1863

Treaty of Huế confirms First Treaty of Saigon

Treaty ofNguy n

Aug 11, 1863

Cambodia accepts French protectorate treaty

King NorodomCambodia

Timeline

18581865187318801887

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Authored by

Michael Carrico|Updated Apr 23, 2026

18581865187318801887

Michael Carrico

Updated:Apr 23, 2026

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Library Colonial War Era

Treaties and establishment of French Indochina (1862–1887)

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Franco-Spanish forces attack Tourane (Da Nang)

French forces seize Saigon

First Treaty of Saigon cedes three provinces

Treaty of Huế confirms First Treaty of Saigon

Cambodia accepts French protectorate treaty

Treaties and establishment of French Indochina (1862–1887)

Franco-Spanish forces attack Tourane (Da Nang)

French forces seize Saigon

First Treaty of Saigon cedes three provinces

Treaty of Huế confirms First Treaty of Saigon

Cambodia accepts French protectorate treaty

France annexes western Cochinchina provinces

Garnier captures Hanoi citadel

Second Treaty of Saigon expands French privileges

Rivière seizes Hanoi citadel

Battle of Thuận An enables imposed protectorate terms

Harmand Treaty of Huế declares protectorates

Franco-Chinese Tianjin Accord signed

Patenôtre Treaty of Huế formalizes protectorate regime

Treaty of Tianjin ends Sino-French War

Decree creates the Union of French Indochina