[2][3] Crimea was under de facto control of Nazi Germany from September 1942 to October 1943, administratively incorporated into Reichskommissariat Ukraine as Generalbezirk Krym-Taurien.

[6] Actual collaboration in the military sense had been rather limited, with a recorded 9,225 Crimean Tatars serving in anti-Soviet Tatar Legions and other German formed battalions,[7] but there was in fact a surprisingly high degree of co-operation between the occupation government and the local administration; this has been significantly due to Frauenfeld's unwillingness to implement the policy of brutality towards the local population pursued by Reichskommissar Erich Koch, which led to a series of public conflict between the two men.

[8] The constitutional rights of the forcibly-resettled Tatars were restored with a decree dated September 5, 1967, but they were not allowed to return until the last days of the Soviet Union.

It was stripped of its autonomous status as a result of the alleged crimes of Crimean Tatars during World War II.

[18][19][20] On 19 February 1954, the oblast was transferred from the Russian SFSR to the Ukrainian SSR jurisdiction,[10] on the basis of "the integral character of the economy, the territorial proximity and the close economic and cultural ties between the Crimea Province and the Ukrainian SSR"[21] and to commemorate the 300th anniversary of Ukraine's union with Russia.

[22][23] Sevastopol was a closed city due to its importance as the port of the Soviet Black Sea Fleet and was attached to the Crimean Oblast only in 1978.

1918–24  Turkestan3 1918–41  Volga German4 1919–90  Bashkir 1920–25  Kirghiz2 1920–90  Tatar 1921–91  Adjarian 1921–45  Crimean 1921–91  Dagestan 1921–24  Mountain 1921–90  Nakhichevan 1922–91  Yakut 1923–90  Buryat1 1923–40  Karelian 1924–40  Moldavian 1924–29  Tajik 1925–92  Chuvash5 1925–36  Kazakh2 1926–36  Kirghiz 1931–92  Abkhaz 1932–92  Karakalpak 1934–90  Mordovian 1934–90  Udmurt6 1935–43  Kalmyk 1936–44  Checheno-Ingush 1936–44  Kabardino-Balkarian 1936–90  Komi 1936–90  Mari 1936–90  North Ossetian 1944–57  Kabardin 1956–91  Karelian 1957–92  Checheno-Ingush 1957–91  Kabardino-Balkarian 1958–90  Kalmyk 1961–92  Tuvan 1990–91  Gorno-Altai 1991–92  Crimean