The Wisdom of Harry Lime Redux In the years before the Romans destroyed Carthage, there were those who perceived that Rome was on the threshold of becoming a super power. One senator warned that if they destroyed Carthage (and walked over that threshold), there would no longer be anything to keep Rome strong. The good this Roman saw in perpetual warfare is an odd sort of good.
One the one hand, it threatens life. War has the potential to destroy a society. In fact, as Roman senators were debating the destruction of Carthage, the long-standing greatness of civilizations to the east was headed toward the dust-bin as a direct result of exhaustion from war.
But people (especially those who have been caught up in some great conflict) know that war also strengthens. And the Lime character points out that this isn't just the strength to fight the next war. It pervasively animates a people and their culture.
My suspicion is that there is no satisfying answer to the question.