Topic
Polish military formations 1914–1918
Poles fought in their own units on both sides of the front: in the Legions alongside Austria, in corps in Russia and in the Polish Army in France.
- Author:
- Łukasz Skowroń
- Updated:
- 31 October 2026
In the First World War Poles fought not only in the armies of the three partitioning powers but also in formations of their own, on both sides of the front. Alongside Austria-Hungary fought the Polish Legions of Józef Piłsudski, and after their break-up in 1917 the Polish Auxiliary Corps and the Polish Armed Forces. On the Russian side came the Puławy Legion, the Polish Rifle Brigade and Division and, after the revolution, three Polish corps, and in France first a company of volunteers in the Foreign Legion and then a Polish Army called the Blue Army after the colour of its uniforms. Mieczysław Wrzosek estimated the whole volunteer military effort of the Poles in 1914–1920 at about 180 to 200 thousand soldiers, and their officers became the cadres of the Polish Army.
| Formation | Side | Years | Commanders | Largest strength | Fate |
|---|---|---|---|---|---|
| Polish Legions (I, II and III Brigade) | Austria-Hungary | 1914–1916 | Józef Piłsudski, Józef Haller, Zygmunt Zieliński and others | over 25,000 in autumn 1915 (Wrzosek); between 30,000 and over 40,000 passed through its ranks | renamed the Polish Auxiliary Corps in September 1916 |
| Eastern Legion | Austria-Hungary | 1914 | Józef Haller | about 6,200 volunteers (Polish Wikipedia) | disbanded in September 1914, about 800 men went over to the Legions |
| Polish Auxiliary Corps | Austria-Hungary | 1916–1918 | Stanisław Szeptycki, Zygmunt Zieliński | nearly 21,000 (April 1917) | disbanded after Rarańcza in February 1918 |
| Polish Armed Forces | Germany | 1917–1918 | Hans von Beseler, Felix von Barth | 352 officers and 4,813 other ranks (October 1918) | a nucleus of the Polish Army |
| Bayonne men | France | 1914–1915 | French officers | a company, just over a hundred men | bled white in Artois in May 1915 |
| Puławy Legion | Russia | 1914–1915 | Witold Gorczyński, Antoni Reutt, Jan Rządkowski | 17 officers and 909 other ranks | joined the Polish Rifle Brigade in autumn 1915 |
| Polish Rifle Brigade, later Division | Russia | 1915–1917 | Piotr Szymanowski and others | about 30,000 in June 1917, with the reserve regiment (Wrzosek) | joined the I Corps in August 1917 |
| I Polish Corps | Russia | 1917–1918 | Józef Dowbor-Muśnicki | about 29,000 | disbanded at German demand in May 1918 |
| II Polish Corps | Russia, Ukraine | 1917–1918 | Sylwester Stankiewicz, Józef Haller | 651 officers and 6,267 other ranks (1 May 1918); 7,000–8,000 according to other sources | capitulated after the battle of Kaniów on 11 May 1918 |
| III Polish Corps | Ukraine | 1917–1918 | Eugeniusz de Henning-Michaelis, Juliusz Rómmel | nearly 3,000 | disarmed by the Austrians in June 1918 |
| Polish Army in France | France | 1917–1919 | Józef Haller (from October 1918) | 17,000 in November 1918; 68,433 soldiers shipped home in 1919 | joined the Polish Army in 1919 |
The Polish Legions
On 6 August 1914 the First Cadre Company of Piłsudski’s riflemen marched out of Kraków and crossed the border of the Kingdom of Poland. The uprising the Commandant had counted on did not break out, and the Austrians wanted to disband his units. They were saved by the Supreme National Committee, set up on 16 August, which took the Polish Legions under its patronage. The order creating them was signed on 27 August by the Austro-Hungarian commander-in-chief. They were always headed by a Pole, but he was a general or senior officer of the Austro-Hungarian army. Recruitment and support for the Legions were run by the Military Department of the Supreme National Committee, headed by Władysław Sikorski.
Besides the riflemen from Kraków, the Eastern Legion was formed in Lviv from Sokół squads and other organisations not linked to Piłsudski. According to Polish Wikipedia 6,200 volunteers joined it. With the Russians approaching, the legion was evacuated westwards, and under the influence of opponents of cooperation with Austria most of the volunteers went home. On 21 September at Mszana Dolna, during the Austro-Hungarian retreat, it was decided to disband it. About 800 legionaries gathered around Captain Józef Haller took the oath and joined the Legions’ 3rd Infantry Regiment.
Piłsudski’s riflemen became the 1st Regiment, which in October 1914 fought at Laski and Anielin and in December became the I Brigade. In Piłsudski’s absence the brigade, commanded by Kazimierz Sosnkowski, fought the heaviest battle of that year at Łowczówek. The 2nd and 3rd Regiments were sent to Hungary, where they helped drive the Cossacks out of Máramaros, and in April 1915 the II Brigade, called the Carpathian or Iron Brigade, and the III Brigade were formed. In June the II Brigade fought at Rarańcza in Bukovina. In the autumn of 1915 all three brigades stood in Volhynia, where they took Kukle, Kamieniucha and Polish Hill.
According to Wrzosek, at their peak in the autumn of 1915 the Legions had over 25 thousand soldiers, about 15 thousand of them in front-line units. According to the Museum of Polish History 30 thousand men passed through their ranks, according to Wrzosek over 40 thousand. They fought their biggest battle in July 1916 at Kostiuchnówka, where for three days during the Brusilov Offensive the I and III Brigades held up a Russian corps and lost about 2 thousand men. The successive commandants of the Legions were Generals Rajmund Baczyński, Karol Trzaska-Durski and Stanisław Puchalski, and then Stanisław Szeptycki and Zygmunt Zieliński.
From the Auxiliary Corps to Rarańcza
After Kostiuchnówka Piłsudski asked to be discharged in protest against the Legions being treated as auxiliary troops. The Austrians made partial concessions, and an order of 30 September 1916 renamed the Legions the Polish Auxiliary Corps. After the Act of 5 November it was to become the nucleus of the army of the new Kingdom of Poland. On 10 April 1917 Austria-Hungary placed the corps, nearly 21 thousand strong, under the Governor-General of Warsaw, Hans von Beseler, commander-in-chief of the Polish Armed Forces then being formed, in German the Polnische Wehrmacht.
Piłsudski argued that an oath from the Polish army could be accepted only by the prime minister of a Polish government. On 9 and 11 July 1917 most legionaries of the I and III Brigades refused the oath. Officers from the Kingdom were interned at Beniaminów, other ranks at Szczypiorno, and the legionaries from Galicia were drafted into the Austro-Hungarian army. On the night of 21–22 July the Germans arrested Piłsudski, and Sosnkowski with him. The Polish Armed Forces shrank to a handful: by various counts from just over a thousand to just under 3 thousand soldiers. According to Wrzosek, in October 1918, when the Regency Council took over supreme authority over them, they numbered 352 officers and 4,813 other ranks. They became one of the nuclei of the Polish Army.
The rest of the Legions, above all Colonel Haller’s II Brigade, most of which had taken the oath, the Austrians took back under their command as a new Polish Auxiliary Corps under General Zieliński. When in February 1918 the Central Powers promised the Chełm region to Ukraine, the legionaries saw it as a new partition. On the night of 15–16 February part of the brigade, according to Polish accounts about a hundred officers and fifteen hundred soldiers, broke through at Rarańcza across the Austrian front. On 19 February the Austrians disbanded the corps and interned between about 4 and 5.5 thousand detained soldiers in Hungary. The participants of the breakthrough who were caught were tried at Máramarossziget for treason, but the trial ended with an amnesty.
The Bayonne men
In France, Poles wanted from the first days of the war to fight the Germans under their own banner. Russia would not agree to a separate Polish legion, so the volunteers were left with the Foreign Legion. On 22 August 1914 the first Poles were accepted into it in Paris, between a hundred and eighty-odd and about three hundred men according to different authors. They were sent for training to Bayonne (PL), after which they were called the Bayonne men (PL). They formed a company that was almost entirely Polish but had French officers, with a banner bearing a white eagle. At the Russian embassy’s demand, further volunteers were scattered among other companies of the Legion.
In the second half of October the company, just over a hundred men strong, went to the front in Champagne. On 9 May 1915 it went into the attack in the Second Battle of Artois. It took German trenches near La Targette and Neuville-Saint-Vaast but lost about three-quarters of its strength. The historian Marek Gałęzowski notes that until the Polish army in France was formed in 1917 it was the only compact Polish unit that fought on the Western Front under a white-eagle banner.
The Puławy Legion and the Polish riflemen in Russia
On the Russian side the first Polish units were formed under the patronage of Roman Dmowski and the National Democrats, as an answer to Piłsudski’s Legions. The way was opened by the appeal of Grand Duke Nicholas, but the Russian command did not trust the Poles. Witold Gorczyński obtained permission to raise a legion, which from 4 December 1914 gathered at Puławy, and the surplus volunteers were sent to Lublin, where the Lublin Legion was formed. The Puławy Legion numbered 17 officers and 909 other ranks. In February 1915 the Russians banned the name “Polish Legion” and renamed it the 739th Novo-Alexandria Militia Druzhina.
The legion had its baptism of fire on the night of 19–20 May 1915 at Pakosław near Iłża, where of 493 men it lost 42 killed, 60 wounded and 11 missing. In the summer it covered the Russian army’s retreat from the Kingdom, clashing along the way with Poles fighting on the other side. Of about a thousand men, 7 officers and 105 NCOs and privates were left. Under an order of 22 September 1915 from the chief of staff to the commander-in-chief, General Mikhail Alekseyev, its remnants joined the new Polish Rifle Brigade of General Piotr Szymanowski at Bobruisk.
In the spring of 1916 the brigade went into the line near Baranovichi, on a sector that proved quiet. In January 1917 it was moved to the Kiev area and expanded into the Polish Rifle Division. According to Wrzosek, in June 1917 the division had about 30 thousand soldiers, 17 thousand of them in the reserve regiment at Belgorod. In July it joined the 7th Army during the Kerensky Offensive and came under heavy fire near Brzeżany, while the uhlan regiment, expanded from its cavalry squadron, charged at Krechowce. In August the division and the uhlans were sent to the I Polish Corps then being formed.
The three Polish corps in Russia
After the February Revolution Polish servicemen in Russia met in June 1917 at a congress in Petrograd, which set up the Supreme Polish Military Committee (PL), the Naczpol. At its request General Józef Dowbor-Muśnicki took command of the I Polish Corps in August: on 6 August according to Rafał Sierchuła, while according to Wrzosek the order appointing him was issued on 8 August. The plan provided for three rifle divisions and about 70 thousand men, but in December the corps numbered about 29 thousand soldiers. Dowbor built it as an old-style army, without soldiers’ committees, with the officers in command.
On 25 January 1918 the corps took up arms against the Bolsheviks, who wanted to disarm it, and in February it seized the Bobruisk fortress. When the Germans moved east, Dowbor concluded with them the Bobruisk convention, which recognised the corps as a neutral force. In May the Germans issued an ultimatum, and on 21 May the corps was disbanded. According to a return of 10 May it then numbered 23,661 men. In all about 23.5 thousand soldiers, including 1,800 officers, were taken to the Kingdom, and several hundred opponents of the capitulation set off for Ukraine, the Kuban and Murmansk, to join smaller Polish units.
The II Polish Corps began to be formed in December 1917 in Bessarabia by General Sylwester Stankiewicz, from Poles serving in the Russian armies of the Romanian and South-Western Fronts. In March 1918 the legionaries from Rarańcza joined it, and at the end of March Haller took command. The corps marched east to cross the Dnieper but halted near Kaniów. According to its strength on 1 May it numbered 651 officers and 6,267 other ranks, according to other sources 7–8 thousand men. On the night of 10–11 May the Germans attacked its quarters. The corps defended itself all day and, when its ammunition ran out, capitulated, and Haller made his way to France via Moscow and Murmansk.
The III Polish Corps, created on 12 December 1917 according to Wrzosek, was formed in Ukraine by General Eugeniusz de Henning-Michaelis. It acted in agreement with the Polish landowners and defended their estates against the rebellious peasants. By the third decade of January 1918 nearly 3 thousand officers and men had gathered at its assembly points. After heavy fighting with Ukrainian peasant bands, in April its remnants, as the Separate Light Brigade of Colonel Juliusz Rómmel (PL), came under Austrian control, and on the night of 9–10 June the Austrians disarmed about 2 thousand soldiers. According to the Institute of National Remembrance the Polish formations in Russia numbered over 50 thousand soldiers in all in 1918.
The Polish Army in France
On 4 June 1917 President Raymond Poincaré signed the decree creating an autonomous Polish army, fighting under a Polish banner but subordinate to the French high command. The Russian veto had fallen with tsarism. The army was organised by the Franco-Polish Military Mission of General Louis Archinard, and its soldiers came above all from the Polish community in America: over 20 thousand volunteers passed through the training camp at Niagara-on-the-Lake in Canada. At the turn of 1917 and 1918 the 1st Polish Rifle Regiment was formed, and from 22 February 1918 political leadership of the army was exercised by Dmowski’s Polish National Committee.
On 22 June 1918 the army’s regiments received their colours. The 1st Regiment was already fighting in Champagne. On 13 July Haller reached France, and on 25 July the 5th Company of the 1st Regiment took a hill near Saint-Hilaire-le-Grand and beat off three counter-attacks. The agreement of 28 September recognised the army as allied and co-belligerent, and on 4 October the Committee appointed Haller commander-in-chief. In October the 1st Polish Rifle Division took over a sector of the front in the Vosges.
In November 1918, according to Wrzosek, the army numbered only 17 thousand soldiers. It grew after the Armistice, when former prisoners of war from the German and Austro-Hungarian armies joined it, including from camps in Italy. In 1919 it was taken by rail across Germany to Poland: according to Wrzosek exactly 68,433 soldiers, by most estimates about 70 thousand. Well armed by the French, with artillery, aircraft and tanks, in May 1919 it went on the offensive in Eastern Galicia.
In the east the war did not end for the Poles. From the autumn of 1918 General Lucjan Żeligowski formed the 4th Polish Rifle Division, first in the Kuban and then in Odessa; it returned home on 17 June 1919. In Siberia the 5th Polish Rifle Division of Colonel Kazimierz Rumsza, 10,772 soldiers strong in April 1919, fought alongside the Czechoslovaks and the Whites. It covered Kolchak’s retreat and in January 1920 capitulated east of Krasnoyarsk. Under the agreement of 28 September 1918 both belonged to a single Polish Army under Haller’s supreme command.
What the formations left behind
In the autumn of 1918 the cadres of the reborn Polish Army came from all these formations, from the Polish Military Organisation and from the partitioning armies. On the seniority list of 1921, covering 24,876 officers, former officers of the Russian army made up 30.7 per cent, of the Austro-Hungarian army 29 per cent, of the Legions, the Polish Military Organisation and the Polish Armed Forces 21 per cent, and of the Polish Army in France 3.7 per cent. Among the verified officers of the former Russian army about 1,800 came from the I Polish Corps. Each group had its own verification commission.
Living together was not easy. Marian Romeyko recalled that the cadre was divided into “broad-gauge men”, “Catholic Dowbor men”, “legun” legionaries and “Austrian wire-fixers”, and that officers clustered in units of “their own”. In 1920 generals judged that officers from the Austrian army were better trained professionally, while the legionaries excelled in zeal and initiative. Politics divided them too: Haller and Dowbor-Muśnicki did not belong to Piłsudski’s camp, and their dispute with the legionaries lasted throughout the interwar years. Yet in 1920, during the Battle of Warsaw, the old rivals fought together: the Northern Front commanded by Haller included the armies of Sikorski and Bolesław Roja.
Historians judge these formations differently. In the tradition of Piłsudski’s camp the Legions were the nucleus of the Polish army and proof that the Poles had won independence by themselves. Wrzosek held that the efforts to create a Polish army in Russia brought meagre results compared with the number of Poles in the Russian army, while he rated the efforts around the Polish Army in France very highly, because its recognition as an allied army meant recognising Poland as a member of the coalition. Military historians stress that Rarańcza and Kaniów mattered above all politically and morally: they showed that Poles in Austrian and Russian uniforms were ready to fight the Central Powers for the Polish cause.
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Key dates
(41)- 1 August 1914First fighting on the border of the Kingdom of PolandOn 1 August 1914 the German-Russian border, running through Polish lands, became a front line. In the following days the Germans took Kalisz and Częstochowa.
- 14 August 1914Grand Duke Nicholas issues a proclamation to the PolesOn 14 August 1914 the Russian commander-in-chief urged the Poles to fight Germany, promising to unite the Polish lands under the Tsar with autonomy.
- 22 August 1914Polish volunteers join the Foreign LegionOn 22 August 1914 the first Polish volunteers were accepted into the Foreign Legion at the Invalides in Paris. Trained at Bayonne, they became the Bayonne men.
- 11 September 1914The great Austro-Hungarian retreat in GaliciaOn 11 September 1914 Conrad ordered the Austro-Hungarian armies back behind the San, then the Dunajec. Russia took most of Galicia and besieged Przemyśl.
- 7 October 1914Austro-Hungarians retake MáramarosszigetOn 7 October 1914 Austro-Hungarian troops, supported by the Polish Legions, drove the Cossacks out of Máramarossziget, capital of Máramaros, taken days before.
- 20 October 1914Battle of Dęblin endsThe British chronology ends the Battle of Ivangorod, or Dęblin, on 20 October 1914. In reality the fighting there went on for another week.
- 4 December 1914The Puławy Legion is formedOn 4 December 1914 the first volunteers of a Polish Legion, raised with Russian consent and National Democrat backing against Piłsudski's, reached Puławy.
- 22–25 December 1914BattleBattle of ŁowczówekOn 22–25 December 1914 the Legions' First Brigade retook the hills above the Biała near Tarnów on the march and held them against the Russians for three days.
- 9 May 1915Second Battle of Artois beginsOn 9 May 1915 the French Tenth Army attacked near Arras. Pétain's corps reached Vimy Ridge in two hours, but without reserves it could not hold it.
- 19 May 1915The Puławy Legion at PakosławOn the night of 19–20 May 1915 the Puławy Legion attacked the Germans at Pakosław near Iłża. Of 493 men it lost 42 killed, 60 wounded and 11 missing.
- 12–15 June 1915BattleBattle of Rarańcza (1915)From 12 to 15 June 1915 the Legions' Second Brigade fought the Russians at Rarańcza on the Bukovina–Bessarabia border. On 13 June its uhlans charged at Rokitna.
- 22 October 1915Legions capture KukleOn 22 October 1915 Rydz-Śmigły's legionaries took the village of Kukle in Volhynia, helping to close the gap a Russian attack had torn in the Styr front.
- 27 October 1915Legions capture KamieniuchaOn 27 October 1915 the 6th Regiment of the Legions and German grenadiers took Kamieniucha in Volhynia in a night attack, capturing over 400 prisoners.
- 10 November 1915Legions capture Polish HillOn 10 November 1915 the Second Brigade and Austro-Hungarian troops took the Russian positions at Kostiuchnówka. The Germans named the hill Polish Hill.
- 4 June – 20 September 1916BattleBrusilov offensiveFrom 4 June 1916 Brusilov's four armies broke the Austro-Hungarian front in Volhynia and Bukovina. They took hundreds of thousands of prisoners but not Kovel.
- 4–6 July 1916BattleBattle of KostiuchnówkaOn 4–6 July 1916 the First and Third Brigades of the Legions held the Styr against the Russian XLVI Corps, lost about 2,000 men and fell back to the Stokhid.
- 5 November 1916Act of 5 NovemberOn 5 November 1916 a manifesto of the German and Austrian emperors was proclaimed in Warsaw and Lublin, promising a Kingdom of Poland without a king or borders.
- 12 March 1917February RevolutionOn 12 March 1917 the Petrograd garrison joined the strikers. Tsarist rule in the capital collapsed; a Duma Committee and a Soviet arose in the Tauride Palace.
- 4 June 1917Decree creating the Polish Army in FranceOn 4 June 1917 President Poincaré signed a decree creating in France an autonomous Polish army, fighting under the Polish flag.
- 1–16 July 1917BattleKerensky OffensiveThe last Russian offensive of the war. In July 1917 the South-Western Front broke through at Zborów and Stanisławów, but the attack soon petered out.
- 9 July 1917Oath crisisOn 9 July 1917, at Piłsudski's call, I and III Brigade legionaries refused an oath of brotherhood in arms with Germany and Austria-Hungary. Internment followed.
- 22 July 1917Arrest of PiłsudskiOn the night of 21–22 July 1917 the Germans arrested Józef Piłsudski and Kazimierz Sosnkowski in Warsaw. The Commandant spent over a year in Magdeburg.
- 24 July 1917Fall of Tarnopol and StanislauOn 24 July 1917 the Austrians entered Stanislau, and on the morning of 25 July the Germans entered Tarnopol. Retreating Russian soldiers looted both towns.
- 6 August 1917Dowbor-Muśnicki takes command of the I Polish CorpsOn 6 August 1917 Gen. Józef Dowbor-Muśnicki took command of the I Polish Corps, formed in Russia on the Naczpol's initiative from Poles in the Russian army.
- 15 August 1917Polish National Committee foundedOn 15 August 1917 the Polish National Committee was founded in Lausanne under Roman Dmowski. It soon moved to Paris and sought recognition from the Entente.
- 25 January 1918I Polish Corps against the BolsheviksAt noon on 25 January 1918 General Dowbor-Muśnicki's ultimatum expired. The I Polish Corps refused to be disarmed and took up the fight against the Bolsheviks.
- 9 February 1918Peace of Brest-Litovsk with UkraineOn 9 February 1918 the Central Powers made peace with the Ukrainian People's Republic at Brest. For grain they promised it Chełm Land, angering the Poles.
- 15 February 1918Battle of RarańczaOn the night of 15–16 February 1918 Colonel Haller's Second Brigade of the Legions broke through the Austrian front at Rarańcza in protest at the Ukraine peace.
- 25 February 1918Convention of BobruiskOn 25–26 February 1918 at Bobruisk Gen. Dowbor-Muśnicki's I Polish Corps agreed with the Germans that it would be treated as a neutral force and keep its arms.
- 11 May 1918BattleBattle of KaniówOn 11 May 1918 the Germans surrounded and attacked the Polish II Corps near Kaniów. After a day of defence, Haller's corps, out of ammunition, capitulated.
- 21 May 1918Disbandment of the I Polish CorpsOn 21 May 1918 in Minsk Gen. Dowbor-Muśnicki's representative accepted a German ultimatum. The I Polish Corps was to lay down its arms and disperse home.
- 22 June 1918Colours for the Polish Army in FranceOn 22 June 1918 at Mailly in Champagne regiments of the Polish Army in France received colours from French cities and swore an oath before Poincaré.
- 13 July 1918General Haller in FranceOn 13 July 1918 Gen. Józef Haller, after a voyage from Murmansk via Scotland, landed at Le Havre. A few days later he joined the Polish National Committee.
- 25 July 1918Polish riflemen at Saint-Hilaire-le-GrandOn 25 July 1918 a 1st Polish Rifle Regiment company took Bois de la Raquette in Champagne and beat off three counter-attacks. It became the regiment's day.
- 28 September 1918Polish Army becomes an allied armyOn 28 September 1918 France and the Polish National Committee agreed to recognise the Polish Army as autonomous, allied and co-belligerent with the Entente.
- 4 October 1918Haller becomes commander-in-chiefOn 4 October 1918 the Polish National Committee appointed Gen. Józef Haller commander-in-chief of the Polish Army. On 6 October he took the oath at the front.
- 7 October 1918Declaration of the Regency CouncilOn 7 October 1918 the Regency Council's proclamation "To the Polish Nation" declared the aim of an independent Poland and dissolved the Council of State.
- 18 December 1918French land at OdessaOn 18 December 1918 General Borius's French division landed at Odessa. At the French demand, the Directorate's troops began to leave the city.
- 14 May 1919Polish offensive in Eastern GaliciaOn 14 May 1919 Haller's troops, despite Entente objections, attacked the Ukrainians in Eastern Galicia and Volhynia, taking most of the country in two weeks.
- 14 November 1919Fall of OmskOn 14 November 1919 the Reds crossed the frozen Irtysh and took Omsk, Kolchak's capital. They took tens of thousands of prisoners as the Whites fled east.
- 13–25 August 1920BattleBattle of WarsawFrom 13 to 25 August 1920 the Polish Army stopped the Red Army before Warsaw and, striking from the Wieprz, routed Tukhachevsky's armies.