French colonial federation uniting Cochinchina, Annam, Tonkin, Cambodia, and (from 1899) Laos under a single Governor-General.
Collapsed through the First Indochina War; ended formally with the 1954 Geneva Accords, partitioning into North/South Vietnam, Cambodia, and Laos.
The atlas holds 3 border frames for French Indochina — the shape you scrub through changes in 1887 · 1941 · 1946.
Verified via Open Library (author + title + year match); standard interwar scholarly survey of the federation.
Bernard Fall's classic on the French war in Indochina and the collapse of colonial rule.