Romania and Poland was not provinces of Soviet Union but some regions were occupied after the WW2. Romania and Poland were many years satellite countries.
Romania, between September 1944 and March 1965.
The satellite nation were Poland, East Germany, Czechoslovakia, Hungary, Romania, Bulgaria, and later Cuba and Vietnam.
The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania. The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania.
In Eastern Europe, he Soviet Union made satellite Nations of those countries ordering it. Satellite Nations are dependent upon a stronger power. Bulgaria, Romania, Czechoslovakia, Hungary, Poland, and East Germany became communist.
Poland
The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania. The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania.
Romania, between September 1944 and March 1965.
The satellite nation were Poland, East Germany, Czechoslovakia, Hungary, Romania, Bulgaria, and later Cuba and Vietnam.
Nations under Soviet/Communist influence after the Second World War were called satellite countries: Czechoslovakia, Hungary, Poland, Bulgaria, romania and Yugoslavia.
East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania.
The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania. The Soviet Satellite Nations were: East Germany, Czech, Poland, Soviet Union, Hungary, Romania, Yugoslavia, Bulgaria and Albania.
In Eastern Europe, he Soviet Union made satellite Nations of those countries ordering it. Satellite Nations are dependent upon a stronger power. Bulgaria, Romania, Czechoslovakia, Hungary, Poland, and East Germany became communist.
U.S.S.R. satellites during 1945-1989 include East Germany, Poland, Czechoslovakia, Hungary, Romania, and Bulgaria.
Poland
You are probably looking for Iron Curtain, although Warsaw Pact would also work, or satellite nations, or puppet governments.
After WWII, Poland, Hungary, Czechoslovakia, Bulgaria, and Romania became the USSR's satellite states.
Poland Romania Hungary Albania