The Battle of Thermopylae: Betrayed, Bloodied, and Besieged

Leonidas depicted ordering the troops to retreat and live to fight another day | Courtesy of Wikipedia Commons
Leonidas depicted ordering the troops to retreat and live to fight another day | Courtesy of Wikipedia Commons

One by one the Greek and Persian forces continued to slaughter each other in combat as they battled for nearly three days. As the Spartan-led Greek forces relentlessly continued to combat the Persians, King Leonidas fell with sword in hand, finally receiving the glory he ultimately desired through combat. His death was not untimely, but rather expected, as Spartans knew they should never retreat from battle, even when faced with inevitable demise.1

The ancient songs of war were played and written by the Spartans themselves, a glorious bunch. These Spartan warriors, through time, still continue to intrigue and amaze us today. Many of us have seen, or at least have heard of, the movie 300, featuring the famed Spartan warriors being glamorized through Hollywood theatrics. But what was it even about? 300 wasn’t just a movie for the sake of being a movie, but rather something greater. It was about Greek history and the tenacity of the ancient Greek Spartans and their ability to engage and endure combat relentlessly. While war is something we see much of in the ancient world, there are few battles that hold up in history and withstand the test of time. One of the most notorious ones is The Battle of Thermopylae.

Greek bust of Herodotus | First half of 4th Century B.C.E. | Courtesy of Wikipedia Commons

As told by the ancient Greek historian Herodotus, the tale of the Battle of Thermopylae is comprised of many themes, including honor, betrayal, courage, and loyalty to the Greek city-states. An invasion from the Persian Empire of Xerxes was taking place, and decisions needed to be made. At the request of the Athenian general and politician Themistocles, King Leonidas I of Sparta rose to lead his Spartan forces to battle against the Persian army. Xerxes’ forces were preparing to advance through the pass at Thermopylae, which was the last natural barrier defending the Greek mainland. As Leonidas and his men marched to Thermopylae, other Greek city-states contributed troops to the effort, including the Phocians, and they all met alongside with Spartan forces to form a joint force. By now the force was composed of approximately 7,000 men. Together, the Spartan-Greek alliance continued to set forth towards the coastal-adjacent passage of Thermopylae to help defend the Greek mainland from the invasion. Leonidas decided to take his men and the accompanying forces to the middle gate of the Thermopylae pass, where the Phocian people, who lived south of it, had previously constructed a wall in the pass to defend from such invasions. Scholars estimate the Persian forces to have consisted of around 120,000-300,000 men strong when they faced off with the Greek forces.2 The Greeks didn’t know how large the Persian army was, but they knew of their might. The reality for them was simple and objective: they would be fighting not only for themselves, but for everyone they loved back home. They may have been from different city-states, but at Thermopylae, they were one force united behind one cause.

It is said by Herodotus that earlier in the year, Leonidas and his fellow Spartans had met with the High Priestess, or Oracle, in the Temple of Apollo located in Delphi. Leonidas had only chosen Spartans with living sons to take with him to combat after this visit.3 This is our first clue that Leonidas knew that perhaps he would have to sacrifice his life through combat eventually. The Oracle is said to have prophesied the following:

O ye men who dwell in the streets of broad Lacedaemon!
Either your glorious town shall be sacked by the children of Perseus,
Or, in exchange, must all through the whole Laconian country
Mourn for the loss of a king, descendant of great Heracles.4

After the Greeks finally made it into Thermopylae, they established camp at the wall for what would be seven days total. When the Persian army was eventually visible across the Malian Gulf, the Greek forces held a council of war. Some men wanted to retreat and defend the Isthmus of Corinth, but the Phocians grew weary, knowing their land was just south of Thermopylae. They were right to worry, but they were also right, to an extent, to trust Leonidas when he eased their fears, assuring them that they would defend Thermopylae. Adding to the list of decisions to make, Leonidas eventually received word of a path that could be used by the Persians to outflank them. He decided to place 1,000 Phocians on the mountainside to rectify the possible danger, having no reason to believe they would not prove to be reliable.5 With everything to consider, Xerxes sent an emissary to negotiate with Leonidas, presenting fair terms of surrender. But why would a glory seeking warrior and his people submit to surrender, to the will of another? The answer was that he wouldn’t. Upon refusal of accepting the negotiation terms, Xerxes demanded they lay down their arms, but to no avail. Xerxes allowed four days of delay, only to his dismay.

It wasn’t until the fifth day that Xerxes had become angered and decided it was time to commence the battle.6 Xerxes sent a force of roughly 10,000 men, only to prove being incapable of breaking the Greek defense. The Greeks fought in front of the Phocian wall, shoulder to shoulder, taking advantage of the most narrow part of the pass and using the least amount of men as possible. It was then that Xerxes wanted to utilize his elite force known as the Immortals, but they too failed in their attempt to destroy the Greek lines. Xerxes’ military may have been large, but it was impossible to make use of those numbers when fighting in a the confined space. Leonidas continued to use the narrowness of the passage to their advantage, utilizing what is known as a feigning retreat by running away from the Persian line only to turn around quickly and slay troops chasing after them. The fact that the Immortals used spears shorter than the Greeks did not help them either, thus reducing their tactical and geographical advantage even more. Even with such conditions, Leonidas and his company still faced a possible flank. But Leonidas kept in mind where he had stationed the Phocians, to defend against that possibility.

Persian and Greek force movements during Battle of Thermopylae and movements to Salamis and Plataea | 480 B.C | Courtesy of Wikipedia Commons

Xerxes needed something to give him a new tactical edge, to make this a more decisive battle, a key to ensure victory. That key was none other than Ephialtes of Trachis. Ephialtes was of the Malian Greek tribe, whose land spanned around what is the present day Malian Gulf. Ephialtes believed that if he helped the Persian King, he would be rewarded. Upon the second day of combat, in one of the greatest Greek betrayals in the ancient world, Ephialtes showed Xerxes and his forces a path around south of Thermopylae to the Greeks’ position.7 Phocian forces were placed topside the mountain for this very reason, but they were unprepared and did not expect to be met with a force of the magnitude that came. While they fled to the top of the mountain, the Persian forces continued past as fast as they could. Leonidas, who had become aware of this dire situation had to make a choice. Flee, or stand and fight. He had personally ordered many of the Greek allies away, knowing they would be killed if they stayed, but knowing also that he and his Spartan troops could not retreat from a position they had come to defend. For warriors as noble as some of the ones who joined with him, the decision for some to stay was of high conscience and glory seeking. With many Greek forces retreating, Leonidas and the rest of his men became a rearguard defending their retreat. Leonidas and his men had to continue to hold the battle for as long as they could. Had he not stayed, this would have opened the passage further for Persian forces to run down the retreating Greeks easily. With Leonidas and his final warriors most likely making peace with the gods and themselves, Herodotus says:

Here they defended themselves to the last, those who still had swords using them, and the others resisting with their hands and teeth.8

The decision to stay and fight to the death has sparked debate ever since the famed Spartans sacrificed themselves through combat. Some have argued that the act was merely the battle creed of the Spartans to never retreat from their post, but others argue that it was a tactical decision to allow other men to retreat. Regardless of the objective truth that may lie behind the confusion is that with this defeat, the Spartans and company granted the other Greek city-states the much needed time to continue allocating other resources and time for the defense of Greece. Though the Second Persian Invasion was not to succeed, the Battle of Thermopylae showed that the Greeks were composed of fearsome warriors to be reckoned with in battle.

  1. John Francis Lazenby, The Defense of Greece 490-479 B.C. (United Kingdom: Aris & Phillips, 1993), 144-145.
  2. Tom Holland, Persian Fire: The First World Empire and the Battle for the West (New York: Doubleday, 2006). 394.
  3. Alfred Denis Godley, The Persian Wars, Volume III (Cambridge: Harvard University Press, 1922), VII 205.1
  4. Rawlinson George, The History of Herodotus (London: John Murray, 1859), VII 242.
  5. R. Hope Simpson, “Leonidas’ Decision,” Phoenix 26, no. 1 (1972): 4.
  6. Alfred Denis Godley, The Persian Wars, Volume III (Cambridge: Harvard University Press, 1922), 7.210.1.
  7. Salem Press Encyclopedia, January 2016, s.v. “Battle of Thermopylae,” by Chara Paul John, Jr.
  8. Alfred Denis Godley, The Persian Wars, Volume III (Cambridge: Harvard University Press, 1922), 7.210.1.

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This Post Has 36 Comments

  1. Avatar
    Thomas Fraire

    This article was elegantly composed and especially charming. The Battle of Thermopylae is a very well know battle from ancent times, there have been movies made about it. . I additionally like how the way that the writer makes reference to the film however does not keep on depicting its correct records yet rather centers around the occasion through insightful sources.it was a Great way of pulling in the reader and connecting pop culture to history.

  2. Avatar
    Indhira Mata

    The war was called the Perisan War. Reading the article it helps to see how the Greeks were able to win. I mean the Perisans were far more skilled and militarized, so it made no sense that they would be held to lose. Then again in class we did not learn that they Greeks combined all the forces they could that would be willing to help. With the article it explains alot that was not mentioned in the movie, but is still missing the why of it.

  3. Avatar
    Raymond Munoz

    I think the most important thing to take away from this battle and this article is the fact that the spartan and Greek defeat was not in vein. Thanks to the Spartans help many Greeks lived to fight another day and fend off the Persians once and for all. Most of the time in life people see failure as a negative, but this battle defines that there is a silver lining in everything, especially in defeat.

  4. Avatar
    Micaela Cruz

    Although I’ve never found ancient Greek history to be extremely interesting, I liked this article and how it highlighted the actual story behind the movie 300. I enjoyed the amount of information inserted with the article, the author created a story line that was easy to follow. I did not have much prior knowledge about this particular battle but I did learn quite a bit.

  5. Avatar
    Pamela Callahan

    The Greeks fighting strategy was very smart. In camping out and fighting from a narrow space, they were easily able to stand their ground and fight, while losing less men from their army. The Spartans truly were legends and their decision to never retreat was very brave. I can’t imagine what it must have been like to know that you were going to lose a battle but have to continue fighting anyways. To me, this just goes to highlight their dedication to their people and their nation.

  6. Daniela Duran
    Daniela Duran

    It was very interesting to read about this war! I believe that the bravery of Leonidas is admirable, and even if they did not actually defeat the Persians, I believe the Greek triumph is in the fact they didn’t give up. Any other troop would have been totally scared to fight a Persian army, but they proved to be brave enough to continue fighting. I was shocked by the betrayal of Ephialtes of Trachis! I can’t believe that someone would be so disloyal to their own army, placing them in such a disadvantaged position.

  7. Avatar
    Steven Hale

    Regardless of the reason-whether tactical or just cultural-the Spartans still chose to die. The anecdote about the Oracle was intriguing; we just don’t put stock in prophesy or fortune telling as a society the way they did. I wonder if the prophecy was self-fulfilling. As in, if the Oracle had predicted a mighty victory, would Leonidas have brought more troops or approached the battle differently?

  8. Avatar
    William Rittenhouse

    This is one of my favorite battles from this time. Their culture was built on warriors and to be the most lethal force as they could, something they probably achieved during their era. I think their policy of no surrender and no retreat was pretty heroic. To lay your life down for your country at all costs. Probably one of the most noble things you can do. Not many other cultures are built up around war which is why I think it makes the Spartans so unique.

  9. Avatar
    Nathan Alba

    I thought the article was quite interesting, although I have seen the movie “300” I felt like the article gave a lot of good background that wasn’t mentioned in the movie. It would be cool to find out why exactly the Spartans stayed and basically sacrificed themselves. Being that they had a ‘no retreat’ mentality or if they stayed because of what the oracle ad to say. All in all, good article.

  10. Avatar
    Jonathan Perez

    This article was well written and very much enjoyable. The Battle of Thermopylae is perhaps the best known battle of ancient times and has sparked many different depictions of it in our time. I liked the amount of detail provided and the knowledge of the Spartan military strategies discussed by the author. I also enjoyed how the fact that the author mentions the film but does not continue to describe its exact accounts but rather focuses on the event through scholarly sources.

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