Cossackia (Russian: Казакия) (Ukrainian: Козакія) is a term sometimes used to refer to the traditional areas where the Cossack communities live in Russia and Ukraine, and to the lands of the Zaporizhian Host.
It was used to designate a union of seven Cossack territorial Hosts ("units")— the Don, Kuban, Terek, Astrakhan, Ural, Orenburg, and the Kalmuk district.
Alfred Rosenberg, the Minister of the East (Ostministerium), favored an approach called "political warfare" in order to "free the German Reich from Pan-Slavic pressure for centuries to come".
[6] Rosenberg was a fanatical anti-Semite and racist but he favored a more diplomatic policy towards the non-Russian and non-Jewish population of the Soviet Union, arguing that this was a vast reservoir of manpower that could be used by the Reich.
[8] Rosenberg decided that after the "final victory" Germany would establish a new puppet state to be called Cossackia in the traditional territories of the Don, Kuban, Terek, Askrakhan, Ural and Orenburg Hosts in southeastern Russia.
[7] Cossacks living in the stanitsas occupied by the Wehrmacht, in German POW camps, and to those serving in the Ostlegionen were bombarded with Nazi propaganda announcing that once the Third Reich won its "final victory" Cossackia would become a reality.
[1][13][14] The American historian Christopher Simpson wrote that two of the "captive nations" mentioned in the resolution, Idel-Ural and Cossackia, were "fictitious entities created as a propaganda ploy by Hitler's racial theoretician Alfred Rosenberg during World War Two".
[15] The principle supporter of Cossackia in the United States in the Cold War was Nikolai Nazarenko, the self-proclaimed president of the World Federation of the Cossack National Liberation Movement of Cossackia[16] Nazarenko enjoyed some prominence in New York city area as the organizer of the annual Captive Nations day parade held every July starting in 1960.