The former emperor was exiled with his father (Thành Thái) to
Réunion Island in the Indian Ocean. Prince Vĩnh San continued to favor
national liberation for Vietnam in exile. File:Horse-1024x674.jpg|The former Emperor Duy Tân, pictured with a race horse in
Réunion. File:1417233416-670x1024.jpg|The former Emperor Duy Tân, pictured at his house in St-Denis, Réunion. File:AWrVq0WR.jpg|Former emperor in Réunion. File:DcW5kqTx.jpg|Former emperor in exile (Réunion).
World War II service and death During World War II he resisted the Vichy Regime until the
Liberation of La Réunion, after which he joined the
Free French Forces and became a low-ranking naval officer on the , serving as radio officer. He then joined the Free French army as a second lieutenant in December 1942, receiving successive promotions to lieutenant (1943), captain (1944), major (July 1945) and lieutenant-colonel (September 1945). In late 1945, France
reasserted control over French Indochina and sought a political alternative to the communist
Viet Minh, following the abdication of Emperor
Bảo Đại. French leader
Charles de Gaulle talked to Prince Vĩnh San, who was still very popular in the Vietnamese public memory for his patriotism, about returning to Vietnam as Emperor. However, the former Emperor died in a plane crash in Central Africa on his way home to Vietnam in 1945 and the great hopes of many died with him – as a patriotic challenge to
Hồ Chí Minh. For his wartime service, the French posthumously awarded him the Grand Cross of the Legion of Honour and the Officer's
Médaille de la Résistance, also appointing him a Companion of the
Ordre de la Libération. ==Reburial in Vietnam==