During the Third Reich, the KPÖ played an important role in the Austrian resistance, fighting side-by-side with former political enemies such as Christian socialists, Catholics, Monarchists, and farmers against Hitler's regime. The KPÖ took seriously the order of the Allied Powers in the Moscow Declaration from October 1943, which called for Austria's "own contribution" to its liberation from fascism as a precondition for the resurrection of their own state. More than 4,000 communists were imprisoned or sent to concentration camps and more than 2,000 lost their live during the resistance, including 13 members of the KPÖ's central committee. There was also an Austrian communist resistance network in Belgium, the "Österreichische Freiheitsfront" ().