Feelings of ethnic nationalism characterized eastern europe were stongly political, religious, and cultural until the end of wwll when the eastern bloc was formed. what were consequences for the populations?

they became the buffer zone between communism and democracy until 1991.
many countries revolted and never were under communist control by the ussr.
all nationalistic feelings were forever forgotten as the ussr gained control.
nationalistic groups met privately in homes to keep their traditions alive until the revolution of 1991.