report . good evening, i m bret baier. leaders around the world hope the escalating war of words in south korea does not turn in the real thing. national security correspondent jennifer grich is watching it from the pentagon. reporter: less than 20 miles from the border with north korea, not far from the demilitarized zone, they began life fire military exercises testing apparent restraint shown by the north koreans last weekend when they backed down from the earlier threats to punish the south koreap ns. farther north, little evidence of constraint. they threatened a nuclear holy war. the revolutionary armed forces are going to launch a war of the korean style. new mexico governor bill richardson back from the private peace mission to pyongyang spoke to fox news. north koreans always put out a war-like rhetoric to get everybody genned up. it s common for them. last time they put out the rhetoric and they didn t react militarily. few think a nuclear war is possibl