How Alexander the Great Turned an Impregnable Island City Into a Peninsula
In 332 BC, the island city of Tyre seemed untouchable behind massive walls and a kilometer of sea. Alexander the Great, lacking a navy, did the impossible: he built a massive stone causeway to bridge the gap, transforming the geography of the Mediterranean to secure his dominance over the Persians.
Tyre was a formidable Phoenician stronghold, split between a mainland settlement and an island fortress located one kilometer offshore. Its walls, reaching 45.8 meters high on the landward side, were protected by a disciplined navy and a strategic position that had long frustrated attackers. For Alexander, capturing the city was essential to deny the Persians their final regional harbor and to secure his own access to lucrative Mediterranean trade routes.
The siege began with an ambitious engineering project: a massive causeway designed to allow artillery to reach the island's walls. When the water deepened near the city, Alexander deployed two 50-meter-high siege towers covered in rawhide to withstand fire. The Tyrians retaliated with a sophisticated counter-attack, using a fire ship packed with combustibles to incinerate the Macedonian equipment. This setback forced Alexander to pivot; he eventually secured a fleet of 223 galleys from conquered Phoenician cities and Cyprus, finally allowing him to blockade the ports and breach the fortifications.
The fall of Tyre was brutal, fueled by Alexander's rage over the city's fierce resistance and the execution of his envoys. While those who sought sanctuary in the temple of Melqart were pardoned, the human cost was immense. Estimates suggest 8,000 civilians were massacred, 2,000 soldiers were crucified on the beach, and 30,000 residents were sold into slavery. The stone mole Alexander constructed remains to this day, a permanent testament to the sheer scale of his military engineering.
Historical accounts of the event vary, with some sources like Polyaenus offering alternative narratives, such as a surprise attack while the city's defenders were engaged elsewhere. Regardless of the specific tactical maneuvers, the siege remains a defining moment of Alexander's campaign, demonstrating his relentless commitment to overcoming geographical and logistical barriers through sheer force of will.
Source: Siege of Tyre (332 BC)