Military history of France during World War II

From 1939 to 1940, the French Third Republic was at war with Nazi Germany. In 1940, the German forces defeated the French in the Battle of France. The Germans occupied the north and west of French territory and a collaborationist régime under Philippe Pétain established itself in Vichy. General Charles de Gaulle established a government in exile in London and competed with Vichy France to position himself as the legitimate French government, for control of the French overseas empire and receiving help from French allies. He eventually managed to enlist the support of some French African colonies and later succeeded in bringing together the disparate maquis, colonial regiments, legionnaires, expatriate fighters, and Communist snipers under the Free French Forces in the Allied chain of command. In 1944, after the Allies had landed in Normandy and the southern front moved from North Africa across the Mediterranean into Italy and Provence, these forces routed the German Army, and Vichy officials fled into Germany.

France and Britain had both declared war on Germany two days after the invasion of Poland in September 1939. To divert German forces from Poland, France invaded the Saarland region of Germany on 7 September 1939, but was forced to retreat.^{[clarification needed]} The Phoney War ensued until 1940, when the Germans invaded and overran northern France, forcing the British from the continent. France formally surrendered. Germany sent two million French prisoners of war to forced labor camps in Germany.^[1][a]

In August 1943, the forces under de Gaulle and under Giraud merged into a single chain of command under Allied leadership. French forces on the Eastern Front had Soviet or German leadership. These forces of French exiles and the French Forces of the Interior (FFI) played varying roles in the liberation of France and the defeat of Vichy France, Nazi Germany, Kingdom of Italy and the Empire of Japan. Control of the French colonial empire proved critical. Free French forces won control, helped by Britain and the United States, and used it to attack Nazi-occupied France. All French colonies except Indochina eventually joined the Free French.^[3] The number of Free French troops grew with their successes in North Africa and the invasion of Italy by the Army of Africa. The Allies demanded unconditional surrender from the Axis Powers at the Casablanca Conference. On 30 October 1944, Britain, the United States, and the Soviet Union officially recognized de Gaulle as head of the Provisional Government of the French Republic (GPRF), and eventually as elected president of the French Fourth Republic. The GPRF stepped into the vacuum left when the Vichy administration fled to Sigmaringen in Germany. The outcome of the war resulted in a victory for France and its allies over Germany after the surrender of the Nazis in May 1945, ensuring the definitive victory for the Allied forces in Europe against the Axis Forces.

Recruitment in liberated France led to an expansion of the French armies. By the end of the war in Europe in May 1945, France had 1,250,000 troops, 10 divisions of which were fighting in Germany. An expeditionary corps was created to liberate French Indochina, then occupied by the Japanese. During the course of the war, French military losses totaled 212,000 dead, of whom 92,000 were killed through the end of the campaign of 1940, and 58,000 from 1940 to 1945 in other campaigns, 24,000 lost while serving in the French resistance, and a further 38,000 lost while serving with the German Army (including 32,000 "malgré-nous").^[4]

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