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 German occupied the north and west of French territory and a collaborationist régime under Phillipe 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