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.
French Protectorate of Cambodia
After the Fall of France in 1940, Cambodia and the rest of French Indochina were ruled by the Axis-puppet Vichy France government and despite an invasion of French Indochina, Japan allowed French colonial officials to remain in their colonies under Japanese supervision. In December 1940, the French-Thai War erupted and despite French resistance against the Japanese backed Thai forces, Japan compelled French authorities to cede Battambang, Sisophon, Siem Reap (excluding Siem Reap town) and Preah Vihear provinces to Thailand.