Vietnamese Emperor Duy Tân is captured while calling upon the people to rise up against the French, and is later deposed and exiled to Réunion island.

Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country. One of two communist states in Southeast Asia, Vietnam shares land borders with China to the north, and Laos and Cambodia to the west. Its capital is Hanoi and its largest city is Ho Chi Minh City.

Emperor Duy Tân, born Nguyễn Phúc Vĩnh San, was the 11th emperor of the Nguyễn dynasty in Vietnam, who reigned for nine years between 1907 and 1916.

Réunion is an island in the Indian Ocean that is an overseas department and region of France. Part of the Mascarene Islands, it is located approximately 679 kilometres east of the island of Madagascar and 175 kilometres (94 nmi) southwest of the island of Mauritius. As of January 2025, it had a population of 896,175. Its capital and largest city is Saint-Denis.