WORLD HISTORY

Detailed explanation-1: -France obtained control over northern Vietnam following its victory over China in the Sino-French War (1884–85). French Indochina was formed on 17 October 1887 from Annam, Tonkin, Cochinchina (which together form modern Vietnam) and the Kingdom of Cambodia; Laos was added after the Franco-Siamese War in 1893.

Detailed explanation-2: -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.

Detailed explanation-3: -Germany’s ally, Japan, eventually invaded Vietnam and replaced the French as colonial masters. Vietnam was now a Japanese colony, and that put it squarely in the crosshairs of US foreign policy after 1941.

Detailed explanation-4: -But France colonizes Vietnam, Laos, and Cambodia to proclaim the French Indochina Union in 1887. Colonization has an enormous impact on the populations and economies of the region.

Detailed explanation-5: -The French protectorate of Laos (French: Protectorat français du Laos) was a French protectorate in Southeast Asia of what is today Laos between 1893 and 1953-with a brief interregnum as a Japanese puppet state in 1945-which constituted part of French Indochina.