The French proclaim the Union Indochinoise, or…
1876 CE to 1887 CE
The French proclaim the Union Indochinoise, or Indochina Union, comprising Cambodia and the three constituent regions of Vietnam—Tonkin, Annam, and Cochinchina—in October 1887. (Laos will be added to the Indochina Union after being separated from Thai suzerainty in 1893.)
Cambodia's chief colonial official, responsible to the Union's governor general and appointed by the Ministry of Marine and Colonies in Paris, is a resident general (resident superieur).
Residents, or local governors, are posted in all the principal provincial centers.