The French colonial empire (French: Empire colonial français) consisted of the overseas colonies, protectorates, and mandate territories that came under French rule from the 16th century onward. A distinction is generally made between the "First French colonial empire", that existed until 1814, by which time most of it had been lost or sold, and the "Second French colonial empire", which began with the conquest of Algiers in 1830. On the eve of World War I, France's colonial empire was the second-largest in the world after the British Empire.
France began to establish colonies in the Americas, the Caribbean, and India in the 16th century but lost most of its possessions after its defeat in the Seven Years' War. The North American possessions were lost to Britain and Spain, but Spain later returned Louisiana to France in 1800. The territory was then sold to the United States in 1803. France rebuilt a new empire mostly after 1850, concentrating chiefly in Africa as well as Indochina and the South Pacific. As it developed, the new French empire took on roles of trade with the metropole, supplying raw materials and purchasing manufactured items. Especially after the disastrous Franco-Prussian War, which saw Germany become the leading economic and military power of the continent of Europe, acquiring colonies and rebuilding an empire was seen as a way to restore French prestige in the world. It was also to provide manpower during the world wars.
