Ukraine yes, Slovenia not. Slovenia was part of the Yugoslavia which was like a trasition country between the west and the east.
It is in the southeast of Europe. See the map at the related link below.
Romania was not part of the Soviet Unon although it was one of the Eastern Bloc of nations allied to the Soviet Union.
Eastern part of Ukraine
Hungary was an Eastern Bloc country but never part of the USSR.
Poland
It is in the North-Eastern part of the country.
Hungary
They border each other in the eastern part of Poland and the western part of Ukraine.
NO, that is absolutely NOT true - the Eastern Block were all part of the Soviet Empire
Moldova is situated in the Eastern Europe, between Romania and Ukraine.
Nations:PolandCzechoslovakiaHungaryRomaniaAlbaniaBulgariathe DDR (East Germany)The USSR
Nations:PolandCzechoslovakiaHungaryRomaniaAlbaniaBulgariathe DDR (East Germany)The USSR