I don't know the specific conditions of Crimea's status, aside from the administrative experience of the USSR (and the republics within the RSFSR, not the large union republics), and Russia's interest in naval access. When I noticed you edited your post yesterday, it was the original that prompted me to mention the similar thinking that went on in the People's Republic of China (when the Chinese Communists still followed the Soviet Union's lead). And the impression given by your other posts was that you didn't know much about Stalinist nationalities policy (read my responses to co-op a few pages back to see what I'm on about) until told so by Spanky and myself, so apologies if I got the wrong end of the stick.