The Greatest Commanders

• Introduction
• Chapter 1 The Lion of Macedon: Alexander the Great.
• Chapter 2 The Scourge of Rome: Hannibal Barca.
• Chapter 3 The Eagle of the Republic: Julius Caesar.
• Chapter 4 The Uniter of China: Sun Tzu
• Chapter 5 The Hammer of the Gauls: Vercingetorix
• Chapter 6 The Desert Fox: Khalid ibn al-Walid.
• Chapter 7 The Conqueror of England: William the Conqueror.
• Chapter 8 The Great Khan: Genghis Khan.
• Chapter 9 The Sword of Islam: Saladin.
• Chapter 10 The Maid of Orléans: Joan of Arc.
• Chapter 11 The Father of Modern Warfare: Gustavus Adolphus.
• Chapter 12 The Lord Protector: Oliver Cromwell.
• Chapter 13 The Sun King's Marshal: Henri de la Tour d'Auvergne, Vicomte de Turenne.
• Chapter 14 The Great Captain: John Churchill, 1st Duke of Marlborough.
• Chapter 15 The Old Fritz: Frederick the Great.
• Chapter 16 The Father of His Country: George Washington.
• Chapter 17 The Emperor of the French: Napoleon Bonaparte.
• Chapter 18 The Iron Duke: Arthur Wellesley, 1st Duke of Wellington.
• Chapter 19 The Architect of Union Victory: Ulysses S. Grant.
• Chapter 20 The Gray Ghost: Robert E. Lee.
• Chapter 21 The Master of the Pacific: Horatio Nelson.
• Chapter 22 The Supreme Commander: Dwight D. Eisenhower.
• Chapter 23 The Desert Fox of World War II: Erwin Rommel.
• Chapter 24 The Victor of Stalingrad: Georgy Zhukov.
• Chapter 25 The Maverick General: George S. Patton.
• Afterword

What makes a military commander "great"? The question itself is a battlefield, contested by historians, strategists, and armchair generals for centuries. Is it the sheer number of victories, a tally of enemy banners captured and territory gained? If so, the ledger becomes a grim and often misleading accounting. Is it the scale of their conquests, the redrawing of maps, and the forging of empires? Perhaps, but empires, like the men who build them, eventually turn to dust. The truth, as is often the case, is far more complex and interesting than a simple scoreboard. Greatness in command is a rare alchemy, a blend of disparate and sometimes contradictory qualities that allows one individual to orchestrate the immense, chaotic, and terrifying enterprise of war.

This book is a journey into the minds and careers of twenty-five such individuals. They are men and women separated by centuries, cultures, and the vast technological chasms that define their eras. Some led phalanxes of bronze-clad spearmen, while others commanded mechanized divisions and fleets of aircraft. They fought for gods, kings, republics, and ideologies. Yet, for all their differences, they are united by a common thread: an exceptional ability to lead, to innovate, and to impose their will upon the crucible of conflict. They were, in their time and in their own way, masters of the art of war.

To understand their genius, we must first dissect the components of that art. Military leadership is not a single skill but a suite of them, a delicate balance of competing virtues. It demands strategic vision, the ability to see the entire chessboard of a conflict, from the political aims to the economic realities that fuel the fight. It requires tactical proficiency, the skill to maneuver forces on the battlefield to achieve a decisive result. And, perhaps most crucially, it relies on an almost obsessive attention to the unglamorous but essential business of logistics.

Let us first consider tactics, the most immediate and visceral aspect of command. Tactics are the business of winning battles. It is the choreography of combat, the positioning of troops, the timing of a cavalry charge, the placement of artillery. A brilliant tactician can snatch victory from the jaws of defeat with a single, audacious maneuver, turning an enemy's strength into a fatal weakness. The commanders in this volume are replete with examples of such genius, moments when a battle, and often a war, turned on a flash of insight. They understood the terrain, the capabilities of their own men, and the psychology of their opponent, and they used this knowledge to devastating effect.

But winning battles is not the same as winning wars. This is where strategy enters the picture. Strategy is the overarching plan, the link between military action and political goals. A commander can be a master of the battlefield yet fail utterly if their victories do not serve a coherent strategic purpose. Strategy asks the larger questions: Where should we fight? Why are we fighting? What does victory actually look like, and how do we achieve it at a cost we are willing to bear? The greatest commanders were not just generals; they were strategists who understood that war is an extension of policy, a violent negotiation with a definite political aim.

Their strategic vision allowed them to see beyond the next hill and the next battle, to anticipate the long-term consequences of their actions. They knew when to fight, when to negotiate, and when to stand still. They balanced risk and reward, husbanding their resources and striking only when the opportunity was ripe. This broader perspective is often what separates the merely good commanders from the truly great ones, elevating them from battlefield managers to the architects of history.

Neither tactics nor strategy, however, can succeed without the third pillar of military art: logistics. An old and painfully true adage states, "Amateurs talk about tactics, but professionals study logistics." War is, at its core, a massive problem of supply. An army, as Napoleon is often credited with saying, marches on its stomach. It also marches on its ammunition, its fuel, its medical supplies, and the morale of its soldiers. Without a reliable and efficient supply chain, the most brilliant tactical plan is nothing more than a fantasy, and the most cunning strategy is doomed to fail.

The commanders chronicled in these pages understood this fundamental truth. They were masters of supply, capable of moving vast armies across hostile terrain and sustaining them for extended campaigns. They knew that the line of supply was as vital as the line of battle. Their stories are as much a testament to the clerks, quartermasters, and engineers who supported their campaigns as they are to the soldiers who fought them. To overlook logistics is to overlook the very engine of warfare.

Beyond these three core pillars lies a constellation of personal attributes that define a great commander. At the forefront is leadership, that intangible quality that inspires soldiers to follow their commander into the most desperate of situations. It is a mixture of charisma, courage, and a profound understanding of human nature. The greatest commanders led from the front, sharing the dangers and hardships of their men, earning their trust and unwavering loyalty. They knew how to communicate their vision, to instill discipline, and to maintain morale in the face of adversity.

Courage, too, is indispensable, and not just the physical bravery required to face enemy fire. Great commanders possess moral courage: the willingness to make difficult decisions, to take calculated risks, and to accept responsibility for the consequences. They must be decisive, acting with confidence in moments of extreme pressure when hesitation can mean disaster. This quality of decisive action, of being able to cut through the fog of war and make a clear-headed choice, is a hallmark of superior command.

Furthermore, many of the leaders in this book were innovators. They did not simply master the art of war as it existed in their time; they changed it. They introduced new technologies, developed new tactical doctrines, or reorganized their armies in ways that gave them a decisive edge. From the introduction of combined arms tactics to the development of new siege techniques, these commanders were always thinking, always adapting, and always seeking to stay one step ahead of their adversaries. This adaptability is a crucial ingredient of long-term success on the ever-evolving battlefield.

Of course, compiling any list of the "greatest" is an inherently subjective exercise, fraught with the difficulty of comparing figures across vast stretches of history. How can one meaningfully compare Alexander the Great, whose power was projected by the spear points of his phalanx, with Dwight D. Eisenhower, who commanded the immense industrial and technological might of the Allied powers in World War II? The contexts are so wildly different that direct comparison of their methods seems almost absurd.

The challenge is to judge each commander by the standards of their own time while recognizing the timeless principles of warfare that they exemplify. The technology of war changes, from the longbow to the machine gun, from the sailing ship to the aircraft carrier. But the fundamental challenges of leadership, strategy, and logistics remain remarkably consistent. The goal of this book is not to create a definitive ranking, a fool's errand if ever there was one, but to explore how these twenty-five individuals mastered the challenges of their respective eras.

It is also impossible to discuss these figures without acknowledging the profound moral complexity of their legacies. These are not, for the most part, saints. They were conquerors, and conquest is an inherently brutal business. Their victories were paid for in blood, often on a staggering scale. Cities were sacked, populations were displaced, and the course of entire civilizations was altered by their ambition and military prowess. History is often written by the victors, and the narratives they and their successors promote can obscure the immense suffering that their campaigns caused.

This book will not shy away from these uncomfortable truths. It will present these commanders as they were: complex, often ruthless individuals who were products of violent times. Their genius as military leaders is a matter of historical record, but their actions often had devastating consequences for their enemies. To celebrate their strategic brilliance without acknowledging the human cost would be to tell only half the story. The aim is to provide a balanced and unvarnished portrait, allowing the reader to grapple with the paradoxical nature of these historical giants.

The chapters that follow are arranged in chronological order, beginning with the ancient world and progressing to the mid-twentieth century. This journey through time offers more than just a series of biographical sketches; it provides a window into the evolution of warfare itself. Through the lives of these commanders, we will witness the shift from feudal levies to professional standing armies, the rise of gunpowder and its transformative effect on tactics, and the advent of industrial-scale warfare that defined the modern era.

The selection of these twenty-five commanders is, by necessity, a curated one. For every leader included, many others of great skill and historical importance were left out. The intention is not to present an exhaustive list but a representative one, showcasing a diversity of cultures, time periods, and types of military challenges. From the deserts of Arabia to the plains of Europe and the vast expanse of the Pacific Ocean, the theaters of operation are as varied as the commanders themselves.

Their stories are a compelling mix of high drama, intellectual rigor, and sheer force of will. They are case studies in leadership under the most extreme pressure imaginable. The decisions they made on the battlefield had consequences that rippled through history, shaping the borders of nations, the fates of empires, and the world we inhabit today. In studying their lives, we are not merely studying the history of war, but the history of humanity itself, in all its brilliance, its brutality, and its endless complexity. We begin our chronicle with a man who, in a career spanning just over a decade, carved out one of the largest empires in history and forever etched his name into the annals of command: Alexander the Great.

To be born the son of Philip II of Macedon was to grow up in the shadow of a giant. Philip was a revolutionary, a man who had taken a fractious, peripheral kingdom and forged it into the dominant power of the Greek world. He did this not merely through cunning diplomacy and political marriages, but by creating a new kind of army. Philip took the traditional Greek phalanx, a formation of heavily armed spearmen, and perfected it. He armed his soldiers, recruited from the Macedonian peasantry, with the sarissa, an enormous pike some eighteen feet long that bristled like the quills of a deadly hedgehog. This professionalized infantry, the Pezhetairoi or "Foot Companions," could hold almost any enemy at bay. But Philip’s true genius lay in combining this anvil of infantry with the hammer of his elite heavy cavalry, the "Companion Cavalry," recruited from the nobility. He understood the principles of combined arms, using light infantry, archers, and siege engineers to support his main force, creating a military machine of unprecedented flexibility and power. This was the instrument Alexander inherited in 336 BC, at the age of twenty, when his father was assassinated. The kingdom was his, but the loyalty of the army and the subjugated Greek states was not.

The young king's response was immediate and ruthless. When the city of Thebes, a historic power in southern Greece, rose in rebellion, Alexander marched his army south with astonishing speed. After a brief siege, he sacked the city, slaughtering thousands and selling the survivors into slavery. He left only the temples and the house of the poet Pindar standing as a grim message to the rest of Greece. The rebellions ceased. Having secured his home front with this brutal display of force, Alexander turned his attention to his father's ultimate ambition: the invasion of the Persian Achaemenid Empire. Framed as a Panhellenic crusade of revenge for the Persian invasions of a century and a half earlier, it was in truth a campaign of conquest on a scale the world had never seen.

In the spring of 334 BC, Alexander crossed the Hellespont, the narrow strait separating Europe from Asia, with an army of approximately 40,000 infantry and 5,000 cavalry. He made a symbolic pilgrimage to the site of ancient Troy, casting himself as a new Achilles, the mythical hero of Homer's Iliad. It was a masterful piece of propaganda, but the first real test came shortly after, at the Granicus River. A Persian army, composed of local satraps (governors) and their forces, including a significant contingent of Greek mercenaries, had gathered on the opposite bank to contest his advance.

The Persian commanders had chosen their ground well, positioning their cavalry along the river's edge, hoping to attack the Macedonians as they struggled across the water and up the muddy banks, disrupting their tight formations. Alexander’s veteran general, Parmenion, advised caution, suggesting they wait and cross under the cover of dawn. Alexander would have none of it. In a display of the personal audacity that would define his career, he ordered an immediate assault. He arrayed his forces with the Macedonian phalanx in the center and cavalry on both wings, personally leading the elite Companion Cavalry on the right. He plunged into the river, his white-plumed helmet a clear target for the enemy, and charged headlong into the Persian lines. The fighting was fierce, a chaotic melee of men and horses in the riverbed. Alexander himself was in the thick of it, breaking his lance and fighting for his life. His charge, however, drew the bulk of the Persian cavalry toward him, creating a weakness in their line that the Macedonian infantry exploited. Once the phalanx gained a foothold on the far bank, the battle turned. The Persian cavalry broke and fled, leaving their Greek mercenary infantry to be surrounded and cut down. The victory at the Granicus was decisive, shattering Persian authority in Asia Minor and opening the coastal regions to Alexander's advance.

As he marched south, securing the coastal cities to neutralize the powerful Persian navy, Alexander encountered a different kind of challenge in the Phrygian capital of Gordium. There, in the temple, was the legendary Gordian Knot, an intricate knot of cornel bark. An ancient prophecy held that whoever could untie it would rule all of Asia. After struggling with the knot for a time, Alexander, in a characteristic display of directness, drew his sword and sliced it in half. Whether by solving the puzzle or by circumventing it with brute force, the message was clear: Alexander was a man who made his own destiny.

The Persian King, Darius III, could no longer leave the defense of his empire to his subordinates. In 333 BC, he amassed a grand army and marched to confront the young Macedonian invader. Through a series of maneuvers, Darius managed to position his massive force to Alexander's rear, cutting his supply lines and forcing him to turn back. The two kings would meet on a narrow coastal plain near the town of Issus, a battlefield not of Darius's choosing. The terrain, hemmed in by the sea on one side and mountains on the other, nullified Persia's overwhelming numerical advantage.

Darius positioned his best infantry, including thousands of Greek mercenaries, in the center, with his cavalry arrayed on the flanks. His own position was in the center, as was traditional for Persian kings. Alexander once again took personal command of the Companion Cavalry on the right flank, opposite the bulk of the Persian horsemen. His plan was simple and audacious: to charge directly at the Persian left, break through, and then wheel inwards to strike at the center and Darius himself. The battle began with Alexander leading the charge. The Persian line on their left flank crumbled under the weight of the Macedonian assault. As his cavalry punched through, Alexander did not pursue the fleeing enemy but turned his squadrons towards the Persian center, where the Greek mercenaries were locked in a desperate struggle with the Macedonian phalanx.

The decisive moment of the battle, immortalized in a famous mosaic from Pompeii, was the direct confrontation between Alexander and Darius. As Alexander and his Companions carved their way through Darius's royal bodyguard, the Great King was seized by panic. Fearing capture, he turned his war chariot and fled the battlefield, a move that shattered the morale of his entire army. The Persian line collapsed into a full-scale rout. The narrowness of the plain that had been Darius’s undoing now became a death trap for his fleeing soldiers, who were mercilessly cut down by the pursuing Macedonians. The victory at Issus was a strategic masterpiece and a massive blow to Persian prestige. Alexander captured not only the Persian camp and its vast treasury but also Darius’s mother, wife, and children, whom he treated with courtesy and respect.

With Darius on the run, Alexander continued his strategy of securing the Mediterranean coast. This led him in 332 BC to the island-city of Tyre, a Phoenician metropolis and a major Persian naval base. Tyre was considered impregnable. It sat on an island half a mile from the coast, its walls rising directly from the sea. The Tyrians, confident in their defenses, refused Alexander's demand to surrender. When denied a navy to assault the island directly, Alexander embarked on one of the most remarkable engineering feats of ancient warfare: he decided to build a road to the city.

For seven months, his army labored to construct a massive stone causeway, or mole, across the sea. They used the rubble of the old city on the mainland and timber from the forests of Lebanon. The work was perilous. The Tyrians harassed the workers with projectiles from their walls and raids from their warships. As the causeway neared the city, the water grew deeper, and the Tyrian attacks more intense. They sent a fire ship, packed with combustibles, which crashed into the mole and destroyed Alexander’s siege towers. Any other commander might have abandoned the effort, but Alexander's resolve only hardened. He started rebuilding the mole, making it wider than before. Crucially, his conquest of the other Phoenician cities meant their fleets, once the core of the Persian navy, were now his. With a newly acquired navy of over 200 ships, Alexander blockaded Tyre's harbors and gained control of the sea. He mounted siege engines on some of his ships, creating floating artillery platforms to batter the walls from all sides. Finally, after months of relentless effort, the causeway reached the island. His siege towers, taller than the city's ramparts, rolled forward while his ships assaulted the harbor. A section of the wall was breached, and the Macedonians poured into the city. The sack of Tyre was brutal, a measure of Alexander’s fury at their long resistance.

From Phoenicia, Alexander marched south into Egypt. The Egyptians, who chafed under Persian rule, welcomed him as a liberator. In 331 BC, he founded the city of Alexandria on the Mediterranean coast, a future hub of Hellenistic culture and learning. While in Egypt, he made a perilous journey into the Libyan desert to visit the oracle of Zeus-Ammon at the Siwa Oasis. What exactly transpired in the oracle's inner sanctum is unknown, but upon emerging, Alexander was said to have been acknowledged as the son of Zeus-Ammon. This declaration bolstered his claims to divinity, a powerful tool for ruling over a vast and diverse empire.

Meanwhile, Darius had not been idle. He had gathered another, even larger army from the eastern satrapies of his empire, including fearsome scythed chariots and a number of war elephants. He chose the site for the final showdown with care: the wide, open plains of Gaugamela, near modern-day Mosul in Iraq. This was perfect ground for his cavalry and chariots, where his numerical superiority could be brought to bear and where Alexander could not use terrain to his advantage as he had at Issus.

Alexander, advancing from Egypt, learned of Darius's location and preparations. When his army arrived, he gave them several days of rest, while he carefully surveyed the battlefield. Darius, fearing a night attack, kept his army in formation all night, leaving them tired and on edge by the morning of the battle. Alexander's army, though heavily outnumbered—perhaps 47,000 Macedonians to a Persian force estimated by some modern historians at over 100,000—was well-rested and confident. Alexander's battle plan for Gaugamela was a tactical masterpiece, designed to counter the Persian numbers and their anticipated envelopment. He arranged his army in a complex formation, with a second line in reserve to guard against flanking maneuvers, effectively creating a large, flexible square.

He began the battle not by advancing straight ahead, but by moving his entire army obliquely to the right. This strange maneuver had two purposes: it took his army away from the ground Darius had cleared for his chariots, and it aimed to draw the Persian cavalry on their left flank out, creating a gap in their line. Darius, seeing Alexander trying to move beyond his flank, sent his cavalry on the left to intercept him. As more and more Persian cavalry were drawn into the fight on the flank, a gap began to open between them and the Persian center, just as Alexander had anticipated. Darius then unleashed his scythed chariots. This was a terrifying weapon, but Alexander was prepared. He had ordered his light infantry to open their ranks, creating channels through which the chariots passed harmlessly before being dealt with by javelin-men.

With the chariot attack neutralized and the gap in the Persian line appearing, Alexander seized the moment. He formed his Companion Cavalry into a massive wedge and led a decisive charge directly into the opening, aiming once again for Darius himself. The pressure was immense. The Persian center, hit by Alexander's charge and pressed by the advancing Macedonian phalanx, began to give way. For the second time, Darius III fled the field. And for the second time, his flight triggered a general collapse. The Persian center and left wing dissolved into a rout.

However, the battle was not yet won. On the Macedonian left, Parmenion's wing was under severe pressure from the Persian right-wing cavalry, led by the satrap Mazaeus. A gap had opened in the Macedonian phalanx, and some Persian and Indian cavalry had ridden straight through to raid the Macedonian camp. A desperate message was sent to Alexander, who had to make a difficult choice: continue his pursuit of Darius and potentially capture him, or turn back to save the left wing of his army. He chose to save his men, wheeling his cavalry around to smash into the Persian right wing from the rear. The fighting was some of the hardest of the day, but the attack broke the final pocket of Persian resistance. Gaugamela was a complete and total victory. The casualties were lopsided; ancient sources claim tens of thousands of Persians fell for the loss of only a few hundred Macedonians. The battle effectively ended the Achaemenid Empire.

In the aftermath, Alexander marched to Babylon and Susa, the great capitals of the Persian Empire, which surrendered without a fight. He then moved towards Persepolis, the ceremonial heart of the empire. To get there, he had to force a pass known as the Persian Gates, which was defended by a determined force led by the satrap Ariobarzanes. In a battle reminiscent of Thermopylae, the Persians held the narrow pass for a month until Alexander, guided by local prisoners, led a force through the mountains to attack the defenders from the rear. After this hard-won victory, he entered Persepolis and, in a move that remains controversial, allowed his troops to sack the city before burning the grand palace of Xerxes, possibly as a final act of revenge for the burning of Athens during the second Persian invasion.

The hunt for Darius continued into the eastern provinces. The fugitive king was eventually betrayed and murdered by one of his own satraps, Bessus, who then declared himself the new king. Alexander, who had wanted to capture Darius alive, gave the former king a royal burial and then relentlessly pursued his murderer. This pursuit led him into the rugged, unfamiliar terrain of Bactria and Sogdiana (modern Afghanistan and Uzbekistan). Here, he faced a new kind of war, not of set-piece battles but of grueling guerrilla warfare and sieges against mountain fortresses, such as the famous Sogdian Rock. It was a long and difficult campaign that tested his army's endurance and his own adaptability.

By 327 BC, with the eastern provinces of the former Persian Empire subdued, Alexander's ambition drove him further east, into India. He formed an alliance with the local ruler Ambhi, King of Taxila, and prepared to confront a powerful neighboring king, Porus. Porus was a formidable opponent who had chosen to defend the Hydaspes River (modern-day Jhelum) with a large army that included a terrifying new weapon: two hundred war elephants.

The Battle of the Hydaspes in 326 BC was to be Alexander's last great battle, and perhaps his most difficult. The river was swollen by monsoons, making a direct crossing impossible in the face of Porus's army. Alexander devised a brilliant and complex plan. He left a significant portion of his army under his general Craterus in the main camp to fix Porus's attention, while he marched a strike force many miles upstream under the cover of a stormy night. He crossed the river at a concealed point and assembled his troops on the far bank before Porus could react effectively.

Porus, realizing he had been outmaneuvered, advanced to meet Alexander. He placed his elephants in front of his infantry, hoping they would disrupt the Macedonian cavalry and phalanx. The battle was savage. The elephants inflicted terrible casualties, and Porus's army fought with incredible bravery. Alexander, however, used his superior cavalry to attack the Indian flanks and rear, while his infantry, though battered, managed to contain the elephants, targeting their drivers and causing them to panic and run amok through their own lines. In the end, Macedonian discipline and tactical superiority won the day.

Porus, wounded but unbowed, was captured. In a famous exchange, Alexander asked the proud king how he wished to be treated. "Treat me, Alexander, as a king," Porus replied. Impressed by his courage and dignity, Alexander did just that, not only restoring his kingdom but also adding more territory to it, making a powerful new ally in the process.

Alexander wished to press on further into India, to the great river Ganges, but his army had reached its limit. At the Hyphasis River, his weary and homesick troops, who had campaigned for eight years and marched thousands of miles, finally mutinied. They had faced every kind of foe, but the prospect of endless war against even larger Indian armies was too much. A furious Alexander secluded himself in his tent for three days, but when his men would not relent, he finally and reluctantly agreed to turn back.

The return journey was a disaster. Choosing to explore a new route, Alexander led a portion of his army through the punishing Gedrosian Desert, while the rest sailed along the coast. The march through the desert was an unmitigated catastrophe, with thousands of soldiers and camp followers perishing from heat and thirst. Yet, through it all, Alexander shared the hardships, famously refusing a helmet full of water when there was not enough for everyone. He reached Susa in 324 BC, his army battered but intact. In his final year, he worked to consolidate his vast new empire, encouraging marriages between his soldiers and Persian women and integrating Persians into his army and administration, all part of a vision of a fused Greco-Persian culture. His plans were cut short in June of 323 BC when, in Babylon, after a prolonged bout of fever and heavy drinking, Alexander the Great died at the age of thirty-two. He had never lost a battle, but his empire, held together by his personal genius and force of will, would not long survive him.