Complex sentence: In practice, the policy meant that limited independence of communist parties was allowed, but no country would be allowed to leave the Warsaw Pact, disturb a nation's communist party's monopoly on power, or in any way compromise the cohesiveness of the Eastern bloc.
Split into simpler sentences: In practice, the policy meant that limited independence of communist parties was allowed. However, no country would be allowed to leave the Warsaw Pact, disturb a nation's communist party's monopoly on power, or in any way compromise the cohesiveness of the Eastern bloc.