Ah, you refer to the Communist takeover of Eastern Europe, and it’s subsequent spread.
Well, you’re wrong. If the Second World War showed anything, it was that the Soviet Union (like Nazi Germany before it) was able to spread it’s system by the simple expedient of being in control of a patch of ground. In other words; you’re system goes as far as your armies can advance it.
Dislodging the Soviets from Eastern Europe at the time would have been impossible by American military power (even in combination with out Western Allies, and before you ask, the monopoly on the atom bomb would have made very little difference). I’ve written extensively on this subject right here on FR in the course of numerous “They should have let Patton do his thing” threads. (For your education, see:
http://www.freerepublic.com/focus/f-news/1622901/posts
Unless you’re one of spanalot’s disciples (I noticed you pinged that thread too), you might learn something.