In 1948 a soviet-backed coup by the KSC (Czech Communists) succeeded in forcefully taking over the leftist coalition government in Prague. The move shocked the world, forced the US' hand in enforcing the Marshall Plan and the formation of NATO, leading to the rise of the Iron Curtain that would blanket eastern Europe for forty years.
How might have this coup been averted? What would have happened had the coup failed? Would Stalin have still tried to have his way?