Leonidas

Few deaths in history have echoed as loudly as one defeat in a narrow pass. Leonidas, king of Sparta, is remembered not for an empire won but for a stand that could not be held, and for choosing to hold it anyway.

He was a king of the Agiad line, already past middle age when the Persian king Xerxes led an enormous army into Greece in 480 BC¹. The Greek states, usually at each other's throats, agreed to block the invasion at Thermopylae, the "Hot Gates", where the mountains crowd down almost to the sea and numbers count for less. Leonidas took command of the allied force, its core the small, ferociously trained body of Spartan hoplites.

Go tell the Spartans, stranger passing by, that here, obedient to their laws, we lie.

For two days the Greeks held. Their heavy spears and shields, packed shoulder to shoulder in the bottleneck, turned the vast Persian host into a crush of bodies that could not bring its weight to bear. Then a local man named Ephialtes betrayed a mountain track² that led behind the Greek line. Seeing the trap closing, Leonidas dismissed most of the allies and stayed to cover their escape with about 300 Spartans², alongside Thespians and Thebans.

The Spartans and Thespians died almost to the last man, and Leonidas with them; the Thebans, held back as hostages, surrendered. In pure military terms it was a loss, but the three days bought Greece time, and the example steeled the resistance that beat Persia soon after at³ Salamis and then Plataea. Ever since, "the 300" has stood as the measure of a last stand. Read the battle in full, or set Leonidas beside the great captains of the ancient world in the greatest battles of ancient Greece and our guide to the greatest military commanders in history.

Why Thermopylae still matters

Leonidas left no book of strategy. His lesson is written in the ground he chose to die on.

• The ground did the work. The narrow coastal pass cancelled out Persia's huge numbers, letting a tiny force hold off a vast one for days.
• A sacrifice with a purpose. The final stand was not a pointless death, it bought time for the Greek fleet and cities to prepare for the war ahead.
• Discipline over numbers. Years of Spartan training and the tight hoplite phalanx made each Greek soldier worth many lightly armed Persians in that terrain.
• A legend as a weapon. The story of the 300 hardened Greek resolve and became one of history's most enduring examples of courage against the odds.

Words remembered from Thermopylae

These lines are famous, though they reach us through Herodotus, writing a couple of generations later, and Plutarch, writing centuries later, so they are best read as tradition rather than transcript.

The stand at Thermopylae, 480 BC

1. c. 489 BCBecomes king of Sparta, one of its two royal houses, the Agiads.
2. 480 BCXerxes leads a massive Persian invasion into Greece; the Greek states send a small force to hold the narrow pass at Thermopylae.
3. 480 BC, days one and twoLeonidas' Greeks throw back wave after wave of Persian assaults, including the elite Immortals, in the bottleneck of the pass.
4. 480 BC, day threeA local man, Ephialtes, betrays a mountain track that lets the Persians get behind the defenders.
5. 480 BCLeonidas sends most of the army away and makes a final stand with his 300 Spartans, 700 Thespians and the Theban hostages. Nearly all the Spartans are killed.
6. 480 to 479 BCGreek victories at Salamis and then Plataea turn back the invasion that Leonidas had died to delay.

The truth behind the 300

The number 300 is real but incomplete. Leonidas led 300 Spartan citizens, but the Greek army in the pass numbered several thousand¹, and at the very end 700 Thespians stayed and fought beside the Spartans, with 400 Thebans kept back as hostages. Our main source, the historian Herodotus, wrote a couple of generations later⁵, so some details are debated, but the shape of the stand is not.

Set it beside history's other doomed defences in our guide to the greatest last stands in history, or the wider clash of Greece and Persia in the greatest battles of ancient Greece.

The legend that outlived the man

A monument at the pass carried a famous epitaph², remembered as: go tell the Spartans that here, obedient to their laws, we lie. That single image, free men choosing to die at their post, has echoed through 2,500 years of art, film and politics.

Leonidas is remembered less for what he won than for how he refused to yield. See which commander your own instincts match in our Which Commander Are You quiz.