* Invulnerable

Never attacked, Salzburg Castle was so formidable a fortress that it has stood undefended for 1000 years.

Secretary of Defense Caspar Weinberger
and President Ronald Reagan
adopted the Salzburg strategy of invulnerability
by engaging in an unparalleled military build-up
which eventually exhausted the Soviet Union's attempts to keep pace with the United States' burgeoning military might.

Now vulnerable  . . .