That would be unlikely - Czechoslovakia was in Soviet sphere of influence as decided in Yalta and the West was severely outgunned (at least in conventional weapons) by Soviets in Europe.
"The west" was severely outgunned by the west - the largest political party in France in 1948 was PCF, the communist/socialist alliance in Italy almost won that year. Finland remained outside the eastern bloc simply because it was no longer seen as being part of a threat. In the UK the Labour party which tossed out Churchill while he was in Potsdam was busy nationalizing the commanding heights of England's means of production (although they were not as militant as their comrades on the continent of course).
The west was busy trying to hold onto the West, never mind intervening in Prague.
The width of the possible scenarios is unsettling, one of them may be Prague turning into European Hiroshima.