Outline of Vietnam
Vietnam was under Chinese control for a thousand years before becoming a nation-state in the 10th century. Successive dynasties flourished along with geographic and political expansion deeper into Southeast Asia, until it was colonized by the French in the mid-19th century. Efforts to resist the French eventually led to their expulsion from the country in the mid-20th century, leaving a nation divided politically into two countries. Bitter fighting between the two sides continued during the Vietnam War, ending with a communist victory in 1975.
Nguyễn Trường Tộ
Upon returning to Vietnam in 1861, Tộ briefly served the French colonial forces in southern Vietnam, translating Chinese language documents for the French navy's Admiral Charner in the negotiations that eventually led to the "unequal treaty" signed by France and Vietnam in 1862. This came in the wake of a 1859 invasion by France and Spain of Vietnam. The Europeans had intended to attack Đà Nẵng and Huế in central Vietnam and to force Tự Đức to surrender, so that they could extract territorial and trade concessions. Since the central areas near the imperial fortress were heavily defended, the European forces diverted themselves to the southern region, and in 1862, the Nguyễn court ceded three southern provinces to the French. In addition, the free practice and propagation of Christianity was allowed, in addition to financial compensation.