an Entity references as follows:
The French conquest of Vietnam (1858–1885) was a long and limited war fought between the Second French Empire, later the French Third Republic and the Vietnamese empire of Đại Nam in the mid-late 19th century. Its end and results were victories for the French as they defeated the Vietnamese and their Chinese allies in 1885, the incorporation of Vietnam, Laos, and Cambodia, and finally established French rules over constituent territories of French Indochina over Mainland Southeast Asia in 1887.