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Battle of Wizna, 1939: the Polish Thermopylae

Invasion of Poland (World War II) · 1939 · Poland vs Nazi Germany · ~8 min read · Updated October 2026

Next anniversary: 7 September 2027, the 88th anniversary of the start 7 September in history ›

Polish soldiers bring a 37 mm Bofors anti-tank gun into a firing position on exercises in 1939; the Wizna garrison had no such guns, only two anti-tank rifles

National Digital Archives of Poland, 1939, via Wikimedia Commons, public domain.

At a glance

PolandCaptain Władysław Raginis
vs
Nazi GermanyHeinz Guderian
Date
1939
Location
Wizna, northeastern Poland
Period
Invasion of Poland (World War II)
Outcome
German victory; heroic Polish last stand
By the numbers
SideStrengthLosses
Poland~400-720Heavy; exact toll unknown (about 40 taken prisoner); Raginis died
Nazi Germany~32,000-42,000 (traditional figures; disputed)unknown; estimates vary widely

The Polish garrison was a few hundred strong; the German strength (often cited as tens of thousands) is debated by historians. Unknown: the sources give no reliable figure.

Balance of forces

Poland~400-720
Nazi Germany~32,000-42,000 (disputed)

German figure is a contested traditional estimate.

Quick answer

Who won the Battle of Wizna?

Germany won the Battle of Wizna, fought from 7 to 10 September 1939, but only after a few hundred Polish soldiers under Captain Władysław Raginis, about 720 by the usual count and fewer than 650 by one recent estimate, held a 9-kilometer line of bunkers on the Narew river against General Heinz Guderian's panzer corps. Raginis killed himself rather than surrender when his last bunker fell. The stand is remembered as the Polish Thermopylae.1

In September 1939, a few hundred Polish soldiers held a line of bunkers near the village of Wizna against a German force many times their size, part of Guderian's advancing panzer corps. For three days the tiny garrison held the crossing of the Narew river before it was finally overwhelmed. The stand is remembered as the Polish Thermopylae, and its commander chose death over surrender.2

Black and white portrait of a German officer in Reichswehr uniform
Heinz Guderian as a major in 1929, a photograph from the archive of the Swedish Army Museum. Ten years later his panzer corps attacked Wizna. Public domain

The bunkers on the Narew

Wizna guarded the crossing of the Narew where it meets the Biebrza, on the road to Białystok. The defense sector, part of the Independent Operational Group Narew under General Czesław Młot-Fijałkowski, ran for about 9 kilometers along the eastern bank of the two rivers, from Kołodzieje to Maliszewo, split into a northern subsector at Giełczyn and a southern one at Góra Strękowa by the causeway that carried the road.3

Work on the fortifications began only in the spring of 1939, and time and money ran out before it was done. The backbone was six heavy concrete bunkers with walls 1.2 meters thick and retractable armored cupolas, backed by smaller bunkers, with more still under construction when the war came. They had no ventilation and no radio links between them, and one of the heavy bunkers still lacked its cupola. A similar line of bunkers north of Mława had held off German attacks for the first three days of the invasion.4› Battle of Mława, 1939

Dark locator map with a gold star in a glowing circle marking the approximate site of Battle of Wizna, the coasts, rivers and lakes of the region, and a small world map inset with the area boxed
Battle of Wizna: the star marks the approximate site, and the inset shows the area on a world map. Drawn for this article from Natural Earth data, with no modern borders. Location map: © Echoes of Battle (data: Natural Earth, public domain)

Raginis and his garrison

The commander was Captain Władysław Raginis, born in Daugavpils (Dyneburg) in 1908 and raised in Vilnius, an infantry officer who in 1939 was serving with the Border Protection Corps (KOP) in its Sarny unit. His company reached Wizna from the Osowiec fortress. With his artillery commander, Lieutenant Stanisław Brykalski, he swore to hold the position to the end, an oath meant to steady the men.5

The garrison was a patchwork: the 8th rifle company and a mounted scout platoon of the 135th Infantry Regiment, an infantry gun platoon and pioneers of the 71st Regiment, a reserve sapper company, a fortress artillery battery and a machine-gun company of the Osowiec fortress battalion, about 720 men in all with no reserves behind them. They had six old 76 mm field guns, 24 heavy and 18 light machine guns, and just two anti-tank rifles. What they lacked above all was a real weapon against tanks.6

A corps against a garrison

In the second week of the invasion General Heinz Guderian persuaded Fedor von Bock to send his XIX Panzer Corps east from East Prussia through Wizna, to drive deep behind the Polish armies. The figure usually quoted for the German force is 32,000 to 42,000 men; the Border Guard museum gives about 42,000 men with 350 tanks, and the plaques at the battlefield list two panzer divisions, an infantry brigade and a motorized brigade.7

Military map of Poland in 1939 with German armies in red and Polish armies in blue
The opposing forces on 31 August 1939 and the German plan, a US Military Academy map. Guderian's XIX Corps appears in Pomerania and the Polish Narew Group near Łomża. Public domain

7 and 8 September

The first Germans to arrive came from Jedwabne on the afternoon of 7 September: a reconnaissance battalion of the 10th Panzer Division, which scattered the Polish mounted scouts and took the village of Wizna. The Poles had already blown up the bridge over the Narew. On 8 September the Germans reconnoitered the line and brought up their artillery. After dark, under shellfire, the crew of the westernmost light bunker abandoned it.8

Steel truss bridge at Wizna broken at a brick pier by the Polish defenders, its collapsed span twisted down toward the river, September 1939, in sepia
The bridge at Wizna, blown up by the Polish defenders, in a German soldier's snapshot of September 1939, captioned “Bridge near Wizna destroyed by the Poles”. Unknown photographer, 1939, National Library of Poland (Polona), via Wikimedia Commons, public domain

9 September: the storm

From about ten in the morning on 9 September German artillery and aircraft pounded the bunkers. Brykalski was killed in the observation cupola of the command bunker, Raginis was wounded, and the bridge at Strękowa Góra was destroyed. By the afternoon the northern subsector at Giełczyn had been overrun. At about four o'clock Raginis reported that the German superiority was overwhelming; soon afterwards his only radio was knocked out. By evening, Guderian wrote, his attack had gathered proper momentum, the bunkers at Maliszewo fell, and German units pushed on toward Tykocin and Zambrów.9

A few hundred men held the river line for three days against an army corps.

10 September: death before surrender

By the morning of 10 September only Raginis's command bunker at Góra Strękowa was still fighting. When the ammunition ran out, the badly wounded captain ordered his men to leave the bunker, and then, true to his oath, blew himself up with a grenade. The Border Guard museum puts it in a single sentence: after the ammunition was gone he ordered the crew to abandon the position, “and he himself was torn apart by a grenade”. With the consent of the German commander, Raginis and Brykalski were buried beside the bunker.10

Most of the defenders died on the battlefield; about forty were taken prisoner and a few broke through to Polish units. Relief from the Narew group reached the area only on 11 September, too late. The stand delayed an armored corps but could not stop it.11

Legend and numbers

Wizna is often summed up as 720 Poles against 40,000 Germans, or “40 to 1”. Historians caution that the real figures were smaller on both sides. Dariusz Szymanowski, who has done most to commemorate the battle, estimates 400 to 500 Polish soldiers spread over about 100 square kilometers, and Tomasz Wesołowski of the University of Białystok, working from newly found German archives, puts the garrison at fewer than 650 and argues that the fighting was shorter and fewer German troops took part than usually claimed. Even so, his colleague Wojciech Śleszyński calls the German advantage crushing, and he notes that the “Polish Thermopylae” label is debatable but accepted, so there is no need to reject it.12› Battle of Thermopylae, 480 BC

Śleszyński also points out that Nowogród near Łomża, another strongpoint of the Narew group, held out longer, yet it was Wizna that became the symbol of the fighting in the region. The legend grew in the 1970s, when, he argues, the communist authorities wanted heroes from the middle ranks rather than senior commanders. It reached a worldwide audience in 2008, when the Swedish band Sabaton recorded the song “40:1” on its album The Art of War. In 2009 President Lech Kaczyński awarded Raginis the Grand Cross of the Order of Polonia Restituta, calling him one of the most moving symbols of the Polish soldier's heroism in 1939.13

Visiting Wizna today

In 2011 the Wizna 1939 Association exhumed the remains of Raginis and Brykalski, and DNA tests confirmed that the remains were those of Raginis. In September that year both were reburied with military honors in a war grave inside the ruins of the command bunker on Góra Strękowa, now the center of the memorial. In 2012 Raginis was posthumously promoted to major and Brykalski to captain, and in 2014 a mural of Raginis, based on a photograph from 1938, was painted in Wizna. Anniversary ceremonies are held at the bunker, as on the 75th anniversary in 2014.14› Battle of Westerplatte, 1939

Frequently asked questions

When and where was the Battle of Wizna?

It was fought from 7 to 10 September 1939 around the village of Wizna in northeastern Poland, where the Biebrza flows into the Narew, during the German invasion at the start of World War II.

Who fought at Wizna?

A small Polish garrison under Captain Władysław Raginis, with Lieutenant Stanisław Brykalski commanding its artillery, defended a line of bunkers against General Heinz Guderian's XIX Panzer Corps.

How outnumbered were the Poles?

Very heavily. The usual figures are about 720 Poles against 32,000 to 42,000 Germans with some 350 tanks, but historians think both numbers are too high; one recent estimate puts the garrison at fewer than 650 men.

Did the Poles win at Wizna?

No. It was a German victory, but the outnumbered defenders held for about three days and delayed a whole corps, which is why it is remembered as a heroic last stand rather than for its outcome.

How did Captain Raginis die?

On 10 September 1939, when his command bunker had run out of ammunition, the wounded Raginis ordered his men to leave and then killed himself with a grenade rather than surrender. His remains were identified in 2011 and reburied in the ruins of the bunker.

Why is it called the Polish Thermopylae?

Like the 300 Spartans at Thermopylae, a tiny force held a vital crossing against overwhelming numbers and fought to the end. Some historians find the comparison debatable, but the name has stuck.

What is the Sabaton song about Wizna?

It is “40:1”, recorded by the Swedish band Sabaton on its 2008 album The Art of War. The title refers to the claim that the Germans outnumbered the Poles forty to one.

Notes

A number in the text points to a note; each note names the works that paragraph draws on, listed in full under Sources.

  1. dzieje.pl, “Władysław Raginis (1908-1939)”; Paweł Sztama, “Obrona Wizny”. ↩
  2. dzieje.pl, “Władysław Raginis (1908-1939)”; dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”. ↩
  3. Paweł Sztama, “Obrona Wizny”; dzieje.pl, “Władysław Raginis (1908-1939)”. ↩
  4. Paweł Sztama, “Obrona Wizny”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”. ↩
  5. dzieje.pl, “Władysław Raginis (1908-1939)”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”; Paweł Sztama, “Obrona Wizny”. ↩
  6. Paweł Sztama, “Obrona Wizny”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”; dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”. ↩
  7. Paweł Sztama, “Obrona Wizny”; dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”. ↩
  8. Paweł Sztama, “Obrona Wizny”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”. ↩
  9. Paweł Sztama, “Obrona Wizny”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”. ↩
  10. Paweł Sztama, “Obrona Wizny”; dzieje.pl, “Władysław Raginis (1908-1939)”; Muzeum Polskich Formacji Granicznych, “Władysław Raginis”. ↩
  11. dzieje.pl, “Władysław Raginis (1908-1939)”; Paweł Sztama, “Obrona Wizny”. ↩
  12. dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”; Paweł Sztama, “Obrona Wizny”. ↩
  13. dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”; dzieje.pl, “Minister obrony narodowej spotkał się z muzykami Sabatona”. ↩
  14. dzieje.pl, “76. rocznica walk pod Wizną w kampanii 1939 r.”; dzieje.pl, “Władysław Raginis (1908-1939)”. ↩

Sources

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