It's classic Pierce. Since you've only quoted 3 paragrpahs, I get to add a 4th:
Between the vainglory and the historical amnesia, it's a wonder Murdock doesn't walk the wrong way into traffic, pounding his chest and demanding the finest mead in the land. (As a point of historical fact, Murdock's fight against Marxism-Leninism took place mainly on the battlefields of some cafeteria or another.) On the actual battlefields, of course, Grenada was a joke, and was an obvious attempt to distract the fact that Reagan and his people had left 241 Marines to die in Beirut. Nicaragua was the place where we helped finance our terrorists by selling weaponry to the people who sponsored the killing of said Marines. And the "battlefields" of El Salvador, where Murdock did such proud (if largely vicarious) service included a roadblock where four American nuns were murdered, a university where six Jesuit priests and the members of their domestic staff were slaughtered, and a hospital chapel where Archibishop Oscar Romero was gunned down while saying Mass. The "guiding light" was a burst of swamp gas in the middle of an incalculable moral morass. Ah, as our old friend, Mr. Dooley, sez, thim was the days.