In First Things, Francis X. Maier reviews Victor Davis Hanson’s recent work The End of Everything: How Wars Descend into Annihilation:

A senior fellow in military history and classics at Stanford University’s Hoover Institution, Hanson is a specialist on the human dimension and costs of war. His focus in The End of Everything is, as usual, on the past; specifically, the destruction of four great civilizations: ancient Thebes, Carthage, Constantinople, and the Aztec Empire. In each case, an otherwise enduring civilization was not merely conquered, but “annihilated” — in other words, completely erased and replaced. How such catastrophes could happen is the substance of Hanson’s book. And the lessons therein are worth noting.

In every case, the defeated suffered from fatal delusions. Each civilization overestimated its own strength or skill; each misread the willingness of allies to support it; and each underestimated the determination, strength, and ferocity of its enemy.

Thebes had a superb military heritage, but the Thebans’ tactics were outdated and their leadership no match for Macedon’s Alexander the Great. The city was razed and its surviving population scattered. Carthage — a thriving commercial center of 500,000 even after two military defeats by Rome — misread the greed, jealousy, and hatred of Rome, and Roman willingness to violate its own favorable treaty terms to extinguish its former enemy. The long Roman siege of the Third Punic War saw the killing or starvation of 450,000 Carthaginians, the survivors sold into slavery, the city leveled, and the land rendered uninhabitable for a century.

The Byzantine Empire, Rome’s successor in the East, survived for a millennium on superior military technology, genius diplomacy, impregnable fortifications, and confidence in the protection of heaven. By 1453, a shrunken and sclerotic Byzantine state could rely on none of these advantages, nor on any real help from the Christian West. But it nonetheless clung to a belief in the mantle of heaven and its own ability to withstand a determined Ottoman siege. The result was not merely defeat, but the erasure of any significant Greek and Christian presence in Constantinople. As for the Aztecs, they fatally misread Spanish intentions, ruthlessness, and duplicity, as well as the hatred of their conquered “allies” who switched sides and fought alongside the conquistadors.

The industrial-scale nature of human sacrifice and sacred cannibalism practiced by the Aztecs — more than 20,000 captives were ritually butchered each year — horrified the Spanish. It reinforced their fury and worked to justify their own ferocious violence, just as the Carthaginian practice of infant sacrifice had enraged the Romans. In the end, despite the seemingly massive strength of Aztec armies, a small group of Spanish adventurers utterly destroyed Tenochtitlán, the beautiful and architecturally elaborate Aztec capital, and wiped out an entire culture.

History never repeats itself, but patterns of human thought and behavior repeat themselves all the time. We humans are capable of astonishing acts of virtue, unselfish service, and heroism. We’re also capable of obscene, unimaginable violence. Anyone doubting the latter need only check the record of the last century. Or last year’s October 7 savagery, courtesy of Hamas.

The takeaway from Hanson’s book might be summarized in passages like this one:

Modern civilization faces a toxic paradox. The more that technologically advanced mankind develops the ability to wipe out wartime enemies, the more it develops a postmodern conceit that total war is an obsolete exercise, [assuming, mistakenly] that disagreements among civilized people will always be arbitrated by the cooler, more sophisticated, and more diplomatically minded. The same hubris that posits that complex tools of mass destruction can be created but never used, also fuels the fatal vanity that war itself is an anachronism and no longer an existential concern—at least in comparison to the supposedly greater threats of naturally occurring pandemics, meteoric impacts, man-made climate change, or overpopulation.

Or this one:

The gullibility, and indeed ignorance, of contemporary governments and leaders about the intent, hatred, ruthlessness, and capability of their enemies are not surprising. The retreat to comfortable nonchalance and credulousness, often the cargo of affluence and leisure, is predictable given unchanging human nature, despite the pretensions of a postmodern technologically advanced global village.

I suppose the lesson is this: There’s nothing sacred about the Pax Americana. Nothing guarantees its survival, legitimacy, comforts, power, or wealth. A sardonic observer like the Roman poet Juvenal — were he alive — might even observe that today’s America seems less like the “city on a hill” of Scripture, and more like a Carthaginian tophet, or the ritual site of child sacrifice. Of course, that would be unfair. A biblical leaven remains in the American experiment, and many good people still believe in its best ideals.