Of course, had the US not held a miltary shield over West Germany and the rest of Europe, it would have fallen long ago to the superior military power of the USSR.
The author is correct in her assertion, but unless you or somebody else has sufficient military power to protect the country, it won't last long.
This is why the peaceniks will never be able to run a country without being a pawn of an aggressor.
Peace Through Strength is beyond their ability to understand.