Ministry of Foreign Affairs (Vietnam) - Wikipedia
II Field Force, Vietnam - Wikipedia
President of Vietnam - Wikipedia
State of Vietnam - Wikiwand
Map of French Indochina, 1913 Vietnam history, Historical maps, Map
Cambodia–Vietnam relations - Wikipedia
Ba Trieu, Vietnamese Folk Heroine” Art by me. Loosely based on the
upload.wikimedia.org/wikipedia/commons/thumb/5/51/
Map of North Vietnam, showing the city of Yên Bái, between Lào Cai