Jerzy Markiewicz in his book Paprocie zakwitły krwią partzantów ("Ferns bloomed with the blood of partisans") and Wojciech Sulewski in his booklet Lasy płoną ("Forests are burning") write about the history of this battalion.

The genesis and political foundation of the BCh battalion is mentioned in this work in the chapter "Ruch ludowy, SL, ROCH, Chłostra, Bataliony Chłopskie".

[4][1] During Poland's Defensive War of 1939 Stanisław Basaj fought as part of the Wołynska Cavalry Brigade of the Polish Army.

A larger second partisan detachment was created and commanded by Basaj, as part of the BCh, during May of 1942, and initially conducted only small-scale actions against the Germans and their collaborators.

In the second half of 1942, there were four more significant clashes from which the "Ryś" BCh Partisan Detachment emerged victorious (at Kryłów, Mircze, Poturzyn and Kosmów ).

From November 1942, the next phase of the General Plan East, approved by Heinrich Himmler on 12 June 1942, began to be implemented in the Zamojskie region; following this, Himmler issued another decree (12 November 1942), which was a formal act recognising Zamojskie as the first settlement area (Siedlungsstutzpunkte) in the General Government (GG); there were to be 14 of them in the GG.

On 28 November 1942, a great displacement action began, the brutality and bestiality of which were unprecedented in the history of Europe; villages were surrounded at night, the entire population was herded to a selected square, often murdering the infirm and resistant; the population was also segregated; Children were detached and sent to resettlement or concentration camps in the interior of the country or to concentration camps, while "racially pure" children were sent to be Germanised; as the action took place in late autumn and winter, trains full of frozen corpses of children circulated in the country.

In the spring of 1942, a small operational group was formed in the village of Małków in the Hrubieszów district, headed by Stanisław Basaj "Ryś".

The battalion consisted of ten platoons, a non-commissioned officer school, a reconnaissance team, a sanitary section and rolling stock.

On 27 February, there was another skirmish near Malkov, where the battalion claimed victory over the SS Beyersdorf Battle Group and the Ukrainian National Self-Defence.

Sparing the Polish population, they bravely attacked another detachment of the 14th Division's Granadiers and police; the Ukrainians were beaten in the villages of Górna and Łasków; on that day still, Basaj and "Bold" again went to Małków for ammunition, where they easily dealt with the Ukrainian militia there The Fighting Poland reacted decisively to the German rape, and the resistance assumed such proportions that it came to be known as the Zamość Uprising; Basaj, who immediately turned his OS into a strong partisan unit, also had a significant part in this.

On 15 January 1943, in Tuchania near Dubienka, he fought a battle against the German gendarmerie and Ukrainian police, inflicting heavy losses on the enemy; on 20 January, his 100-strong unit attacked the German gendarmerie and police in Józefów, claiming victory; in pursuit of the Germans, he fought skirmishes in Bokini and Wysoki; in February, it attacked the Ukrainian base in Kryłów, liquidating the policemen and smashing a detachment of Cossacks in the village of Małków; it fought an all-day battle at Modryń and Mircz, inflicting heavy losses on the enemy; on 15 and 17 March, it liquidated the Ukrainian posts in Modryń and Łasków.

On March 18, the "Rysia" battalion carried out an operation against a detachment of Ukrainian nationalists in the village of Górki and, in pursuit of them, smashed a German vehicle column, also destroying two cannons.

On 20 March, he saved the Polish population in the village of Modryń from being murdered by driving out a Ukrainian Insurgent Army unit.

On 3 April, attacking Prehoryłe, he smashed a Ukrainian Insurgent Army unit and took revenge for the murder of the Polish population.

In Kolonia Prehoryłe he smashed a unit of Ukrainian Insurgent Army and German Gendarmerie jointly murdering and plundering the village's Polish population.

Further battles in defence of the attacked villages of Małków and Górki[9][10] In the summer of 1943, the Germans practically ceased their displacement actions in the Zamojszczyzna region, as they no longer had the strength to continue implementing the General Plan East; pacifications and anti-partisan operations were carried out more with a view to ensuring security at the frontline; from the earlyly spring of 1944, the Zamojszczyzna region experienced a new tragedy; the nationalist Ukrainian movement (OUN, UPA), supported by the Germans, undertook concentrated and ruthless actions aimed at pushing back or liquidating the Polish element from the south-eastern districts of Zamojskie (Hrubieszów, Tomaszów, Bilgoraj);[11] Ryś conducted Attack on police station in Mieniany.

In the next action, on 16 February 1944, when the Germans and Ukrainians attacked Małków again from the direction of Dołhobycz and Waręż, "Ryś" wanted to act completely independently, without the help of the AK.

2 rifles, 3 grenades and a nagan were captured.10.On 5 March a clash with the Ukrainian SS Galizien and Ortschutz was recorded, in which 1 BCh soldier was killed and 1 wounded.

At the same time, Czarusia and Wiktor companies of the Home Army drove the enemy back from the Sokal-Hrubieszow road and captured Mircze; having achieved these objectives, the Polish units captured the last points of enemy resistance in the villages of: Modryń, Modryniec and Masłomęcz The third phase of operations attacked Ukrainian self-defence bases in the villages of: Mieniany, Kozodawy, Cichobórz and Kosmów, completely driving out their crews.

The punitive expedition, which was commanded by Lt. Col. Werner Froemert, included: the Ukrainian Self-Defence Legion, sub-units of the 5th Galician SS Volunteer Regiment, a detachment of the German 154th Infantry Division, Ordnungspolizei functionaries, and a battery of armoured guns.

[14] On 27 March the Germans and their Ukrainian collaborators surrounded the ‘Ryś’ battalion, as well as an AK outpost commanded by Mieczysław Olszak, pseud.

[17] After the battle in Smoligów, in fear of more German anti-partisan actions, Basaj decided to evacuate his unit to the Tomaszów county.

He was interrogated in Liski Waręskie in the presence of the highest-ranking members of the Ukrainian underground in the Chełm region, probably including the OUN-B Security Service referent Łeonid Łapinśki "Zenon".

Ryś showed us how to build a holy partisan force, which only needs to be supplied with weapons and a commander to pose a very great threat.