Strategy in antiquity

The ancient world offers the student of strategy a rich field for inquiry. Indeed, the budding strategist is probably best advised to begin with Thucydides’ History of the Peloponnesian War (c. 404 bce), which describes the contest between two coalitions of Greek city-states between 431 and 404 bce. Athens, a predominantly maritime power, led the former members of the Delian League (now incorporated in the Athenian empire) against the Peloponnesian League, which was led by Sparta, a cautious land power. In the opening speeches rendered by Thucydides, the two leaders, Pericles of Athens and Archidamus II of Sparta, wrestle with strategic issues of transcendent interest: How shall they bring their strengths to bear on their enemy’s weakness, particularly given the different forms of power in which the two coalitions excel? How will the nature of the two regimes—the volatility and enterprising spirit of democratic Athens, the conservatism and caution of slaveholding Sparta—shape the contest?

From his study of the Peloponnesian War, the 19th-century German military historian Hans Delbrück drew a fundamental distinction between strategies based on overthrow of the opponent and those aimed at his exhaustion. Both Sparta and Athens pursued the latter; the former was simply unavailable, given their fundamental differences as military powers. Delbrück’s analysis illustrates the ways in which strategic concepts can transcend history. Suitably modified, they illuminate the choices made, for example, by Israel and its Arab enemies in the 1960s and ’70s just as well as they do those made by the ancient Greeks.

Ancient Greece is a story of distinctive states and eminent leaders, such as Alexander the Great, whose triumphs against the Persian empire in the 4th century bce illustrate the success of strategies of overthrow against centralized states unable to recuperate from a severe setback. The rise of ancient Rome, on the other hand, is far more a story of institutions. From the Greek historian Polybius in the 2nd century bce to the Florentine political philosopher Niccolò Machiavelli in the 15th–16th century, the story of Roman strategy seems one of a collective approach to war rather than a reflection of the choices of a single statesman. Rome’s great strength, the ancient historians argue (and modern historians seem to agree), stemmed from political institutions that turned internal divisions into an engine of external expansion, that allowed for popular participation and executive decision, and that concentrated strategic decision making in a powerful Senate composed of the leading men of Rome. To its unique political constitution was added the Roman legion, a form of military organization far more flexible and disciplined than anything the world had yet seen—a fabulous tool for conquest and, in its attention to detail, from the initial selection of soldiers to their construction of camps to their rotation on the battle line, a model imitated in succeeding centuries.

Rome’s conquest of the Mediterranean world illustrates the idea of a tacit or embedded strategy. Rome’s ruthlessness in dividing its enemies, in creating patron-client relationships that would guarantee its intervention in more civil wars, its cleverness in siding with rebels or dissidents in foreign states, and its relentlessness in pursuing to annihilation its most serious enemies showed remarkable continuity throughout the republic.

The Second Punic War (218–201 bce) illustrates these propositions well. There were only two leading figures of note in Rome throughout the war: Quintus Fabius Maximus Verrucosus (Cunctator), who delayed and bought time while Rome recovered from its initial disastrous defeats, and Scipio Africanus the Elder, who delivered the final blow of the Second Punic War to Carthage at the Battle of Zama (202 bce). It does not appear that either was the equal of Hannibal, the brilliant Carthaginian general who administered defeat after defeat to superior Roman armies on their home turf. More important than personalities, however, was Rome’s unflinching determination to pursue its enemies, quite literally to the death. Hannibal was cornered in the Bithynian village of Libyssa and committed suicide, following a demand from Rome that he be turned over by Antiochus III of Syria, whom he had aided in rebellion against Rome following the defeat of Carthage. And Carthage itself—long the target of the grim senator Marcus Porcius Cato’s insistence that it be destroyed (he famously took to ending every oration with the words “Ceterum censeo delendam esse Carthaginem,” which translate as “Besides which, my opinion is that Carthage must be destroyed”)—was wiped out of existence in the Third Punic War (149–146 bce), which was provoked by Rome for the purpose of finishing off its most dangerous potential opponent.