Depends on your definition of insanity? Some people are who and narcissistic are very bright.
I had a relative on the US airbase in the zone between S. Korea and N. Korea and he said North Korea had enormous caves going under that zone and the caves are large enough to drive huge trucks through. He said if N. Korea moved through those caves, our airbase would be lost fast. Our guys are going to die if N. Korea attacks S. Korea so don't be so gung ho on having war.