Twentieth-century France

The History of France from 1914 to the present includes:

In 1914, the territory of France was different from today's France in two important ways: most of Alsace and the northeastern part of Lorraine had been annexed by Germany in 1870 (following the Franco-Prussian War of 1870–71), and the North-African country of Algeria had been established as an integral part of France (a "département") in 1848. Alsace-Lorraine would be restored at the end of World War I (only to be lost again, temporarily, to the Germans a second time during World War II).

Unlike other European countries France did not experience a strong population growth in the mid and late 19th century and first half of the 20th century (see Demographics of France). This would be compounded by the massive French losses of World War I — roughly estimated at 1.4 million French dead including civilians (see World War I casualties) (or nearly 10% of the active adult male population) and four times as many wounded (see World War I) — and World War II — estimated at 593,000 French dead (one and a half times the number of U.S. dead), of which 470,000 were civilians (see World War II casualties). From a population of around 39 million in 1880, France still had only a population of 40 million in 1945. The post-war years would bring a massive "baby boom", and with immigration, France reached 50 million in 1968. This growth slowed down in 1974.

Since 1999, France has seen an unprecedented growth in population. In 2004, population growth was 0.68%, almost reaching North American levels (2004 was the year with the highest increase in French population since 1974). France is now well ahead of all other European countries in population growth (except for the Republic of Ireland) and in 2003, France's natural population growth (excluding immigration) was responsible for almost all the natural growth in European population (the population of the European Union increased by 216,000 inhabitants (without immigration), of which 211,000 was the increase in France's population alone, and 5,000 was the increase in all the other countries EU combined).

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