The Third Republic had first opened concentration camps during World War I for the internment of enemy aliens and later used them for other purposes. Camp Gurs, for example, had been set up in southwestern France after the fall of Catalonia, in the first months of 1939, during the Spanish Civil War (1936–1939), to receive the Republican refugees, including Brigadists from all nations, fleeing the Francoists. After Édouard Daladier's government (April 1938 – March 1940) took the decision to outlaw the French Communist Party (PCF) following the signing of the German–Soviet non-aggression pact (the Molotov–Ribbentrop Pact) in August 1939, these camps were also used to intern French communists. Drancy internment camp was founded in 1939 for this use; it later became the central transit camp through which all deportees passed on their way to concentration and extermination camps in the Third Reich and Eastern Europe. When the Phoney War started with France's declaration of war against Germany on 3 September 1939, these camps were used to intern enemy aliens. These included German Jews and anti-fascists, but any German citizen (or other Axis national) could also be interned in Camp Gurs and others. As the Wehrmacht advanced into Northern France, common prisoners evacuated from prisons were also interned in these camps. Camp Gurs received its first contingent of political prisoners in June 1940. It included left-wing activists (communists, anarchists, trade-unionists, anti-militarists) and pacifists, as well as French fascists who supported Italy and Germany. Finally, after Pétain's proclamation of the "French State" and the beginning of the implementation of the ""Révolution nationale"" (National Revolution), the French administration opened up many concentration camps, to the point that, as historian Maurice Rajsfus writes, "The quick opening of new camps created employment, and the Gendarmerie never ceased to hire during this period."