300 Croatian Spartans VS 100,000 Ottomans: "The battle that saved Western civilization"
It’s the 15th of July, 2018. Croatia’s National Football team is playing France at the World Cup finals.
Millions of Croatians, at the stadium, abroad or at home chant in unison: "U boj, u boj za narod svoj" ("To battle, to battle, for our people!").
But where did that famous slogan come from?
Let me tell you the story of how one brave man, alongside 600 Croatian and Hungarian soldiers, singlehandedly prevented the Ottomans from taking Vienna, thereby changing the course of history forever.
His name was Nikola Šubić Zrinski.
The Suleiman Joins The March
Suleiman the Magnificent, also known as Süleyman I, was the tenth sultan of the Ottoman Empire and one of the most influential rulers of the 16th century.
His reign from 1520 to 1566 is widely regarded as the peak of Ottoman military power, administrative sophistication, and cultural achievement, earning him the title "the Magnificent" in Europe and "the Lawgiver" (Kanuni) within the Ottoman world.
Frustrated with the lack of war progress made in Ottoman favor in Europe, and due to his old age, he decides to go for one last siege. One final battle which would crystalize his status as the most successful emperor in Ottoman history.
His target? Vienna - the cornerstone of Europe at that time.
Only one obstacle stood in his way: the fortress of Sziget (Siget).
Nikola Šubić Zrinski, a veteran commander and former Ban of Croatia, had been appointed captain of Sziget. He commanded roughly 2,400 Croatian and Hungarian defenders, while the Ottoman army likely numbered well over 100,000.
Siege Preparations
The Siege of Sziget was not simply a clash between a small army and a large one. It was a contest between terrain and engineering on one side, and overwhelming manpower and logistics on the other.
Nikola Šubić Zrinski turned the entire low, marshy ground of Sziget into a deadly trap for the Ottomans!
The surrounding wetlands made it nearly impossible for thousands of soldiers to charge at once. Any attacking force had to funnel onto a handful of narrow roads, dikes, and wooden bridges, turning numerical superiority into a much smaller tactical advantage.
The fortress consisted of three major defensive zones: The Old Town, The New Town and The Inner Castle.
Each section was connected only by wooden bridges and causeways. If one position became untenable, the defenders could withdraw, destroy the bridges behind them, and force the Ottomans to begin the assault all over again.
Every captured section merely exposed the attackers to another line of fortifications.
On the other hand, If Zrinski's greatest weapon was terrain, Suleiman's was logistics.
The Ottoman army was among the best-organized military machines of the sixteenth century.
It literally functioned as a moving city.
Its advantages included:
Hundreds of heavy and medium artillery pieces
Elite Janissary infantry
Expert military engineers
Professional sappers trained in siege warfare
Enormous supplies of powder and ammunition
Rather than launching immediate mass assaults, the Ottomans first enveloped the fortress, surrounding it completely to cut off any chance of reinforcement or escape.
Engineers then began constructing trenches that crept steadily toward the walls while artillery batteries were emplaced on raised earthworks to fire over the marshes.
The Siege Begins
On the 5th of August, 1566, the Ottoman army made its decisive move.
Artillery pounded the walls; wave after wave of Janissaries assaulted the defenses.
Each assault was met with cannon fire, arquebuses, arrows, and brutal hand-to-hand combat.
Zrinski constantly moved among his soldiers, encouraging them and often fighting alongside them. The defenders launched daring nighttime raids that destroyed Ottoman siege works and inflicted heavy casualties.
Despite being vastly outnumbered, they delayed one of the strongest armies in the world for over ONE MONTH!
The Death of Suleiman
As the siege dragged on, an extraordinary event occurred.
On the night of the 6th of September, 1566, Sultan Suleiman died inside his command tent.
His death was kept secret by Grand Vizier Sokollu Mehmed Pasha because revealing it might have shattered Ottoman morale before the fortress fell.
Thus, while the defenders fought for survival, neither they nor most Ottoman soldiers knew that the empire's ruler was already dead.
The Fortress Falls, Zrinski Rises
After weeks of bombardment, the outer defenses collapsed.
One by one, the defensive sectors were abandoned.
Eventually only the inner fortress remained.
Fire spread through buildings.
Food and ammunition were running low.
Many defenders had already been killed or wounded.
There was no hope left. They were doomed to die inside.
It is at this moment that Nikola Šubić Zrinski decided to go out with a bang (quite literally as you’ll later see).
Before dawn, Zrinski gathered the remaining defenders.
According to the account of his chamberlain Ferenc Črnko, he dressed not in battered armor but in his finest noble clothing, the same hat he had worn at his wedding, and fastened one-hundred gold coins to his tunic so that whoever killed him could never claim he “had died a poor man”.
Zrinski’s Final Words
To the remaining 600 Croatians and Hungarians:
"Podimo i pobijmo se s neprijateljem licem u lice!" ("Come! Let us meet the enemy face to face in battle!")
"Bog je visoko, a kralj je daleko" ("God is high above, and the king is far away.")
The latter sentence really touched me personally, as it shows Zrinski knew no help would arrive.
Before leading the final march out of the castle garrison, Zrinski had ordered that the fuse of the powder magazine was to be lit. After cutting down the last of the defenders, the besiegers entered the third fort of the fort complex and fell into the booby trap.
The Vizier and his mounted officers had just enough time to escape but 3,000 Ottoman soldiers died due to the explosion.
Legacy
Nikola Šubić Zrinski became one of Croatia's greatest national heroes and is also celebrated in Hungarian history as Miklós Zrínyi.
His sacrifice inspired poems, paintings, monuments, and perhaps most famously the opera Nikola Šubić Zrinjski, whose chorus "U boj, u boj!" remains one of Croatia's best-known patriotic musical works.
More than 450 years later, the defense of Sziget continues to symbolize steadfast resistance against overwhelming odds.