The Greatest Sieges of History

• Introduction

• Chapter 1 The Siege of Troy (c. 1260–1180 BC)

• Chapter 2 The Siege of Tyre (332 BC)

• Chapter 3 The Siege of Syracuse (214–212 BC)

• Chapter 4 The Siege of Alesia (52 BC)

• Chapter 5 The Siege of Masada (73–74 AD)

• Chapter 6 The Siege of Constantinople (717–718 AD)

• Chapter 7 The Siege of Baghdad (1258)

• Chapter 8 The Siege of Acre (1291)

• Chapter 9 The Siege of Orléans (1428–1429)

• Chapter 10 The Siege of Constantinople (1453)

• Chapter 11 The Siege of Malta (1565)

• Chapter 12 The Siege of Ostend (1601–1604)

• Chapter 13 The Siege of La Rochelle (1627–1628)

• Chapter 14 The Siege of Vienna (1683)

• Chapter 15 The Siege of Gibraltar (1779–1783)

• Chapter 16 The Siege of Acre (1799)

• Chapter 17 The Siege of Badajoz (1812)

• Chapter 18 The Siege of Sevastopol (1854–1855)

• Chapter 19 The Siege of Vicksburg (1863)

• Chapter 20 The Siege of Paris (1870–1871)

• Chapter 21 The Siege of Port Arthur (1904–1905)

• Chapter 22 The Siege of Verdun (1916)

• Chapter 23 The Siege of Leningrad (1941–1944)

• Chapter 24 The Battle of Stalingrad (1942–1943)

• Chapter 25 The Siege of Sarajevo (1992–1996)

• Afterword

There is a primal, grim arithmetic to a siege. On one side stand walls, and on the other, a relentless desire to overcome them. At its heart, a siege is a brutal equation of time versus resources. For the attackers, it is a question of how long their supplies, manpower, and political will can last. For the defenders, huddled behind their fortifications, it is a race against starvation, disease, and despair. This fundamental conflict, the static defense against the encircling offense, has remained a constant throughout human history, a recurring drama played out from the Bronze Age to the digital age.

Siege warfare is, in essence, a military blockade of a city or fortress, intended to conquer by attrition or a direct, well-planned assault. It occurs when an attacking force encounters a stronghold that cannot be taken quickly and whose defenders refuse to surrender. The attackers' primary goal is to "invest" the target: to surround it completely, cutting off all avenues for supplies, reinforcements, or escape. This slow, suffocating pressure is often combined with more direct attempts to breach the defenses using siege engines, bombardment, or undermining the walls.

This book is a chronicle of these ultimate contests of will. The sieges detailed within these pages are not merely military encounters; they are crucibles that have tested the limits of human endurance, ingenuity, and brutality. They are turning points in history, moments where the fate of empires, religions, and cultures hung in the balance, all centered on a single, fortified point on a map. From the legendary walls of Troy to the shell-shattered streets of Sarajevo, the story of sieges is the story of civilization itself, in its most desperate and determined form.

The very concept of a siege is inextricably linked to the rise of cities. Once humans began to gather in settled communities, creating surpluses of food and wealth, the need to protect those assets became paramount. The first walls were raised, and almost immediately, others began devising ways to get over, through, or under them. Early archaeological sites across the Middle East reveal the existence of fortified city walls, testaments to this ancient and enduring struggle. This dynamic created an evolutionary arms race that has spanned millennia.

As defensive architecture became more sophisticated, so too did the art of "poliorcetics," or siegecraft. The earliest siege techniques were often straightforward and crude: building a ramp of earth to surmount a wall, or relentlessly battering a gate with a simple, heavy log. Representations from ancient Egypt show soldiers scaling walls on wheeled ladders, a basic but effective tactic. The Assyrians, renowned for their military prowess, refined siege warfare into a systematic and terrifying discipline, employing massive, armored battering rams and tall siege towers to intimidate and overwhelm their foes.

The Greco-Roman world introduced a more scientific approach to siegecraft. Philip II of Macedon and his son, Alexander the Great, were masters of siege warfare, employing engineers to construct sophisticated torsion-powered catapults and massive, mobile siege towers. The Romans, in turn, adopted and perfected these technologies, making the siege a cornerstone of their imperial expansion. Their legions were not just soldiers but also expert engineers, capable of constructing vast lines of circumvallation and contravallation—complex earthworks to both bottle up the defenders and protect the besiegers from a relief army.

For centuries, this dynamic of wall versus engine defined warfare. The medieval period was largely a succession of sieges, with campaigns designed around the capture of key castles and fortified towns. The trebuchet, a giant catapult powered by a massive counterweight, became the ultimate expression of pre-gunpowder siege technology, capable of hurling huge stones over long distances to batter fortifications into submission. Yet, for all the mechanical ingenuity, the most effective weapon in a siege was often time itself.

An attacking army was a vulnerable entity. Encamped in the field for months or even years, it was susceptible to the very afflictions it hoped to visit upon the defenders: starvation and disease. Maintaining a long siege required immense logistical effort, securing a constant flow of food and supplies, often from hostile territory. It was a costly and risky endeavor, undertaken only when a direct assault was deemed too costly or impossible. The besiegers were often just as trapped as the besieged, bound to their lines and exposed to the elements and enemy raids.

Life within a besieged city was a descent into a unique kind of hell. The initial defiance and unity would slowly curdle as the siege wore on. The first casualty was always normalcy. The rhythms of daily life—commerce, farming, social gatherings—would cease, replaced by the grim routine of survival. Food and water were strictly rationed. Every mouthful became a strategic calculation, every drop of water a precious commodity. Defenders would sometimes resort to expelling "useless mouths"—the very young, the old, the infirm—to conserve their dwindling supplies.

As weeks turned into months, hunger became the dominant reality. The inhabitants would work their way through their livestock, then their pets, and then, in the most desperate of circumstances, unthinkable sources of sustenance. Disease, the constant companion of malnutrition and poor sanitation, would rampage through the crowded confines of the city. The psychological toll was immense. The constant threat of bombardment, the gnawing hunger, and the fading hope of relief created an atmosphere of intense stress and despair.

Yet, sieges were also stages for incredible resilience and innovation. Defenders would work tirelessly to repair breaches in their walls, often under a hail of enemy projectiles. They developed their own ingenious countermeasures, from dropping rocks and pouring boiling liquids on attackers to digging counter-mines to intercept enemy sappers tunneling beneath their fortifications. The shared ordeal could forge an unbreakable bond among the inhabitants, a collective will to resist against all odds.

The introduction of gunpowder in the 14th century irrevocably altered the balance between offense and defense. Early cannons were crude and unreliable, but their power to shatter stone walls was undeniable. The age of the towering castle, which had dominated the medieval landscape, began to wane. In response, fortifications evolved. Walls became lower and thicker to better absorb cannon fire, and were built in complex, star-shaped patterns known as trace italienne to create interlocking fields of fire that left no blind spots for attackers to hide in.

This new age of artillery warfare made sieges even more destructive. The thunderous bombardments could reduce entire sections of a city to rubble in a way that trebuchets never could. The cost in human life, both military and civilian, escalated dramatically. Sieges became less about a patient starving-out and more about a systematic, brutal pulverization of the defenses until a breach was created, leading to a bloody and often merciless final assault.

The Napoleonic era and the 19th century saw further advancements in artillery, making even these advanced fortifications vulnerable. The rise of mobile warfare began to diminish the strategic importance of the single, static fortress. Why spend months capturing a single city when an army could bypass it and strike at the enemy's heartland? Yet, the siege was far from obsolete. It adapted, taking on new forms in new contexts.

The American Civil War, for instance, witnessed sieges that were vast in scale, combining elements of traditional siegecraft with the technologies of the industrial age. The Siege of Vicksburg was a critical turning point, a 47-day ordeal that gave the Union control of the Mississippi River and split the Confederacy in two. Here, trench warfare, artillery barrages, and the slow strangulation of a city's supply lines demonstrated that the fundamental principles of siege warfare remained as relevant as ever.

The 20th century, with its world wars, brought the siege to a terrifying new scale. The development of modern artillery, aerial bombardment, and armored warfare made it possible to encircle and annihilate entire cities. Sieges were no longer just about capturing a fortress; they were about breaking the will of a nation by subjecting its urban centers to unimaginable suffering. The very distinction between combatant and civilian, already blurred in earlier sieges, was effectively erased.

The sieges of the First and Second World Wars were characterized by their sheer brutality and the immense loss of civilian life. The Battle of Verdun, essentially a ten-month siege of a fortified region, became a symbol of industrial-scale slaughter. The Siege of Leningrad during World War II lasted for 872 days, leading to the deaths of over a million civilians from starvation and exposure in one of the deadliest sieges in human history. These were not just military operations; they were acts of systematic extermination.

Even in the post-war era, the siege has persisted. The principles of encirclement and attrition have been applied in various conflicts, from urban warfare to counter-insurgency operations. The Siege of Sarajevo in the 1990s demonstrated how a modern European city could be held hostage, its population subjected to years of sniper fire and shelling, a throwback to the brutal logic of medieval warfare played out on television screens around the world.

The stories in this book have been chosen to represent the full breadth of this long and brutal history. They are selected not just for their scale or their death tolls, but for their significance. Some, like the Siege of Tyre, are monuments to military engineering and ruthless determination. Others, like the defense of Masada, are enduring symbols of defiance against overwhelming power. The Siege of Orléans represents a turning point in a long war, sparked by the improbable intervention of a peasant girl.

Still others are included because they mark a fundamental shift in the nature of warfare. The Fall of Constantinople in 1453 was a dramatic demonstration of the power of gunpowder artillery, an event that arguably signaled the end of the medieval era. The Siege of Stalingrad was a brutal, street-by-street struggle that turned the tide of the Second World War on the Eastern Front. Each chapter tells a unique story, yet they are all connected by the same fundamental themes.

They are tales of innovation, the constant back-and-forth between the science of fortification and the art of siegecraft. They are stories of logistics, where victory and defeat often depended not on the bravery of soldiers, but on the timely arrival of a supply convoy or the last of the grain running out. They are chronicles of immense human suffering, of the non-combatants caught between the warring armies, whose experience is so often the true measure of a siege's horror.

Above all, these are stories about the human will. They explore the psychology of both the attacker and the defender. What motivates an army to endure years of hardship in a muddy trench for the sake of capturing a single city? What inspires people to defend their homes to the last, to face starvation and certain death rather than surrender? Within these accounts of unimaginable violence and cruelty, there are also moments of incredible heroism, sacrifice, and a resilience that testifies to the enduring strength of the human spirit.

This book does not seek to glorify war. Instead, it aims to provide a clear-eyed account of one of its most enduring and defining features. By examining these epic confrontations, from the sun-baked walls of the ancient world to the frozen ruins of the 20th century, we can gain a deeper understanding of the evolution of military strategy, the impact of technology on conflict, and the profound and often terrible ways in which these epic struggles have shaped the world we inhabit today. The siege is a lens through which we can view the very best and the very worst of humanity.

More than any other, the Siege of Troy is a story. It exists in the bedrock of Western culture less as a military engagement and more as a grand epic, a sprawling drama of gods and heroes, of love, rage, and cunning. For centuries, the question of whether it happened at all was a matter of scholarly debate. Yet, this foundational siege, immortalized in Homer's Iliad, has become the archetype against which all others are measured. It is the primal narrative of a great city, deemed impregnable, brought low by a determined enemy and a stroke of ingenious deception.

The story, in its mythic grandeur, is well known. Paris, a prince of Troy, absconds with Helen, the wife of Menelaus, king of Sparta. Incensed, Menelaus's brother Agamemnon, the powerful king of Mycenae, assembles a vast coalition of Achaean (or Greek) kings and warriors. They sail a great fleet across the Aegean Sea to the coast of Anatolia, make camp upon the shore, and begin a siege of Troy that will last a decade. The gods themselves take sides, interfering in the affairs of mortals and turning the tide of battle with divine whimsy.

For many years, this was believed to be pure invention, a magnificent founding myth. That changed dramatically in the 1870s when the German businessman and amateur archaeologist Heinrich Schliemann, armed with a fervent belief in Homer's text, began excavating a mound in modern-day Turkey known as Hisarlik. Schliemann's methods were crude, and his conclusions often romantically flawed—he famously and incorrectly identified a hoard of treasure as belonging to Troy's King Priam. However, he accomplished something monumental: he proved that Troy was a real place.

Subsequent, more scientific excavations have revealed a complex history at Hisarlik. The site is a tell, a mound created by successive cities being built upon the ruins of their predecessors. Archaeologists have identified at least nine major layers, labeled Troy I through Troy IX. The most likely candidate for the city of Homeric legend is designated as either Troy VI or Troy VIIa. Troy VI was a magnificent city with formidable defensive walls, but its destruction appears to have been caused by an earthquake. Troy VIIa, built upon its ruins, shows compelling evidence of a violent end by human hands, including fire and unburied bodies, dating to roughly 1184 BC.

The Troy that the Achaeans faced was no mere fortress. It was a significant regional power, strategically located to control access to the Dardanelles strait and the lucrative trade routes to the Black Sea. The citadel, what Homer might have called the "topless towers of Ilium," was protected by massive, sloping limestone walls reaching heights of thirty feet, crowned with mudbrick battlements and punctuated by imposing watchtowers. Below this acropolis lay a substantial lower city, also protected by a ditch and wooden palisade, making the entire settlement a daunting target for any Bronze Age army.

The besiegers, the Achaeans, were not a unified nation in the modern sense. They were a loose confederation of warrior kingdoms from mainland Greece, Crete, and the Aegean islands, a society we now call Mycenaean. This was a civilization organized around palatial centers like Mycenae, Pylos, and Tiryns, ruled by a warrior elite. Their military nature is evident from the vast quantities of weaponry found in their graves and the logistical records preserved on clay tablets in a script known as Linear B, which detail the administration of military personnel and equipment.

The scale of the Achaean expedition described by Homer—over a thousand ships—is almost certainly a poetic exaggeration. However, the assembly of a coalition force for an overseas campaign was well within the capacity of the Mycenaean world. Their motivation, while mythologized as the recovery of Helen, may have had more pragmatic roots. Disrupting a commercial rival, securing access to vital trade routes, or simply the Bronze Age appetite for plunder and glory are all plausible drivers for such a massive undertaking.

The "siege" itself likely bore little resemblance to the methodical, suffocating encirclements of Roman or later eras. The ten-year duration is the first clue. A Bronze Age army could not have maintained a tight, unbroken blockade for a decade. It lacked the sophisticated supply chains and siegecraft. Instead, the Achaean presence was likely more akin to a long-running military occupation of the Trojan plain. Their beachfront camp, fortified with a ditch and palisade, became a semi-permanent base of operations.

From this base, the Achaeans would have exerted pressure on the city while also foraging and raiding the surrounding countryside for supplies. Homer’s account supports this, describing numerous raids on neighboring towns and allies of Troy. The war was not a static affair at the city walls but a wider conflict across the region. For the Achaeans, the campaign was a grinding war of attrition, not just against the Trojans, but against dwindling supplies, disease, and their own fracturing morale.

The central problem for the Achaeans was the state of Bronze Age siege technology. The art of poliorcetics was in its infancy. Complex torsion engines like the catapult were centuries away. While Egyptian and Assyrian reliefs show evidence of battering rams and wheeled siege ladders, these were likely cumbersome and of limited effectiveness against Troy's sophisticated, sloped stone walls. The primary options were grim: a direct assault, starvation, or trickery.

A frontal attack on the walls would have been suicidal. Defenders on the battlements would have had a clear advantage, raining down arrows, sling stones, and rocks on any force attempting to scale the walls with simple ladders. This technological imbalance between the defense and the offense is the key to understanding the siege's prolonged nature. The Achaeans were not equipped to breach the walls, and the Trojans were not strong enough to break the Achaean host in a pitched battle on the plain. The result was a bloody stalemate.

Mycenaean armies were based around heavy infantrymen, equipped with long spears, bronze swords, and large shields. Early in their history, they used massive "tower" or "figure-of-eight" shields made of ox-hide that covered most of the body. Warriors of high status wore elaborate bronze armor, such as the famous Dendra panoply, a full-body suit of bronze plates, and formidable helmets made from boar's tusks. These heavily armed warriors were formidable in close combat but were ill-suited for storming fortified walls.

Chariots were also a key component of the Mycenaean military, though their precise role is debated. Rather than acting as a shock force to break infantry formations as they did in the Near East, it appears Mycenaean chariots were primarily used as battlefield transport for elite warriors, allowing them to move quickly to a point of crisis or to engage in duels. In the context of a siege, their utility would have been limited to skirmishes on the plain outside the city walls.

The Iliad famously focuses on the duels between such heroes. The climactic fight between the Achaean champion Achilles and the Trojan prince Hector is the poem's centerpiece. While these individual combats were undoubtedly important for morale and prestige, they did little to alter the strategic situation. Hector's death was a devastating blow to Trojan morale, but it did not bring the walls down. Achilles' earlier refusal to fight, a protest against Agamemnon, highlights the inherent weakness of the Achaean command structure—a coalition of proud kings, not a unified army under a single authority.

Life within the besieged city would have been a protracted ordeal. While the Achaean blockade was probably porous enough to allow some goods to enter, the ten-year presence of a hostile army would have crippled the Trojan economy and agriculture. Archaeological work by Carl Blegen in the 1930s found evidence consistent with a city under long-term strain: large storage jars, or pithoi, were buried in the floors of houses to increase food storage capacity, and large buildings were subdivided to accommodate refugees.

The psychological toll on the inhabitants must have been immense. Every day brought the threat of attack, the grief of losing friends and family in skirmishes, and the slow dwindling of resources. The city would have been crowded and tense, a pressure cooker of fear and anxiety. Homer gives us glimpses of this, with civilian councils debating the course of the war and the ever-present strain on King Priam and his family. The Trojans were not just defending walls; they were defending their homes and their very existence.

Defensive tactics for a Bronze Age city like Troy would have been primarily reactive. Archers and slingers on the walls and in the towers would harass the enemy, attempting to break up attacks and disrupt work on any siege preparations. Defenders could also launch their own raids, known as sorties, to attack the besiegers' camp, burn their ships, or disrupt their supply lines. In fact, a key moment in the Iliad sees the Trojans successfully break into the Achaean camp and nearly set fire to their ships.

The conflict was part of a wider, chaotic period in the eastern Mediterranean now known as the Late Bronze Age Collapse. Between roughly 1200 and 1150 BC, great empires and civilizations that had dominated the region for centuries crumbled. The Hittite Empire in Anatolia disintegrated, the Mycenaean palace centers in Greece were destroyed, and Egypt was severely weakened by invasions from a mysterious confederation known as the "Sea Peoples". Cities across the region were burned and abandoned. The Trojan War was not an isolated event but a symptom of a world in violent transition.

After ten years of stalemate, the Achaeans could not take the city by force. The Trojans could not drive the Achaeans away. The resolution, as famously recounted not in the Iliad but in later works like Virgil's Aeneid, came through deception. Odysseus, the clever king of Ithaca, devised a plan. The Achaeans would construct a giant, hollow wooden horse and leave it on the beach as a supposed offering to the goddess Athena for a safe voyage home.

The bulk of the Achaean army would then pretend to sail away, but would in fact hide behind a nearby island. A single soldier, Sinon, was left behind to be "captured" by the Trojans. He would spin a tale, convincing them that the horse was a sacred relic and that bringing it inside their city would grant them Athena's divine protection, making Troy impregnable. Despite the dire warnings of the priest Laocoön and the prophetess Cassandra, the desperate and war-weary Trojans took the bait.

They dragged the colossal statue through their gates, in some accounts having to tear down a section of the wall to accommodate its size. That night, as the city celebrated its apparent victory, Odysseus and a band of elite warriors hidden inside the horse emerged. They killed the sentries, opened the city gates, and signaled to the Achaean fleet, which had sailed back under the cover of darkness. The full might of the Achaean army poured into the sleeping city.

What followed was the grim and predictable outcome of a successful siege in the ancient world: a brutal sack. The Achaeans engaged in a merciless slaughter of the population, putting the men to the sword and enslaving the women and children. They plundered the city of its wealth and set it ablaze. The archaeological layer of Troy VIIa, with its widespread fire damage and skeletons lying in the streets, offers a silent, grim corroboration of this violent end.

But was the horse real? Many historians believe the story is a poetic metaphor for something more plausible. One compelling theory is that the "horse" was actually a type of siege engine, perhaps a large, timber-framed battering ram with its head carved to look like an animal and covered with wet horse hides to protect it from fire arrows. Siege engines were often given animal names in antiquity. Such a machine, used to finally breach the gate or a section of wall, could have been mythologized over centuries of oral retelling into the familiar story.

Another intriguing theory suggests the horse is a metaphor for an earthquake. The god Poseidon, a bitter enemy of Troy, was not only the god of the sea but also the "Earth-Shaker," and his sacred animal was the horse. It is possible that a timely earthquake damaged the walls—much like the one that destroyed Troy VI—and the opportunistic Achaeans exploited the breach. A natural disaster, interpreted as divine intervention, could easily have been transformed into the tale of a divinely inspired gift. Other theories speculate it was a ship with a horse figurehead or simply a symbol of diplomatic trickery.

Whatever the truth of its final hours, the fall of Troy marked the end of an era. It was one of the last great campaigns of the Mycenaean warrior kings before their own civilization collapsed into a period of decline and illiteracy known as the Greek Dark Ages. The memory of the great siege, however, was kept alive by oral poets for centuries, a story of heroes and gods that eventually coalesced into the epic we know today.

The Siege of Troy, whether a specific historical event or a composite of many Bronze Age conflicts, endures because it encapsulates every element of a great siege. It has the seemingly impenetrable fortress, a determined, decade-long struggle of attrition, the clash of legendary heroes, the suffering of the civilians trapped within, and a dramatic conclusion brought about not by brute force, but by human ingenuity. It is a timeless story of how the greatest walls can be overcome when martial prowess is paired with a clever mind.