I ever wonder how if AE restricts some country to use some type of aircraft, just like on real world. Is it possible? Moreover maybe also can be applied some "cold war" restrictions on 1950-1991 era and some Embargo effect.
Example : Soviet union and Warsaw Pact countries(e.g Russia, Ukraine, Polish, etc) and Soviet influenced countries (China, Cuba, North Korea, Vietnam, DDR, etc) are not allowed to use Western bloc aircraft(s) or any aircraft that using Western bloc parts until end of 1980's. For China it seems that they allowed to use western aircrafts since 1970/1980's. For North Korea(and maybe Cuba) it seems that they still not allowed to use Western planes until now. US and NATO countries also not allowed to use Eastern aircrafts.
Another one, until 1980's only some Western bloc airlines are allowed to have routes to Soviet Union and Warsaw Pact cities. The same rules also applies to Eastern bloc airlines. And if i'm not wrong, airlines that allowed to enter USSR must using eastern aircraft (for example JAL ever using Tu-114 to be allowed for crossing above Russian airspace)
Thanks for your attention, please correct me if i'm wrong