The answer is 1: Poland, East Germany, and Romania.
After the end of WWII, two main political blocs were conformed in the world, the Western bloc (USA being the main representative along with its European allies), and the Eastern bloc (the USSR and its satellite states, such as Poland, East Germany, and Romania).
As for the Eastern Bloc, the Soviet control and the government in each of these satellite states was fluctuating and changing, but however dissimilar they may have been, they all shared the commonality of being under the general and widespread control of the Soviets and within their borders (as is the case of Poland, East Germany, and Romania), strong governmental control, motivated by the USSR, was exercised in detriment of their populations. This all came to change after the fall of the USSR in 1991.
