Context: While the Warsaw Pact was established as a balance of power or counterweight to NATO, there was no direct confrontation between them. Instead, the conflict was fought on an ideological basis. Both NATO and the Warsaw Pact led to the expansion of military forces and their integration into the respective blocs. The Warsaw Pact's largest military engagement was Warsaw Pact invasion of Czechoslovakia (with the participation of all Pact nations except Romania and Albania). The Pact failed to function when the Revolutions of 1989 spread through Eastern Europe, beginning with the Solidarity movement in Poland and its success in June 1989.

Question: Which organization was in direct competition with the Warsaw Pact?
Answer: NATO

Question: Which nation saw the most significant Warsaw Pact military deployment? 
Answer: Czechoslovakia

Question: What was the name of the Polish revolutionary movement which the Warsaw Pact failed to suppress?
Answer: Solidarity

Question: Which country saw the largest Warsaw Pact deployment? 
Answer: Czechoslovakia

Question: In which year did the Warsaw Pact cease to function effectively? 
Answer: 1989

Question: What was the name of the Polish labor movement which successfully defied the Warsaw Pact?
Answer: Solidarity

Question: There was direct confrontation between the Warsaw Pact and which organization?
Answer: Unanswerable

Question: Which nation saw the most significant Warsaw Pact economic deployment?
Answer: Unanswerable

Question: Who functioned successfully when the Revolutions of 1989 spread through Easter Europe?
Answer: Unanswerable

Question: What was the name of the Albanian revolutionary movement which the Warsaw Pact failed to suppress?
Answer: Unanswerable