On 16.08.1920, when the fate of the battle for Warsaw with the Soviet army was already decided in favour of the Poles, the commander of the 1st Cavalry Army, Semyon Budyonny, at the instigation of political officer Joseph Stalin, ordered his troops to take Lvov with a sudden attack. They were paved the way by the 1st Battalion of the 54th Infantry Regiment and a battalion of young Lvov volunteers, led by Captain Boleslaw Zajączkowski (the commander of this regiment, Major Abraham was lying wounded in hospital at the time). The first of the Polish units was taken by surprise by the overwhelming enemy forces and was almost completely destroyed. On the morning of 17.08.1920, Zajączkowski's battalion of 500 volunteers engaged the Bolsheviks in the vicinity of Zadwórze and occupied the railway station there. In the afternoon, the Poles repulsed six charges by Budionny's cavalry, fighting towards the end (when ammunition had run out) with bayonets and rifle butts. Everyone had the will to fight to the very end. The commander gave permission for the soldiers to use the last cartridge for themselves, thus avoiding the dreaded Russian captivity (several of them exercised this right, including commander Boleslaw Zajączkowski and Pfc. Władysław Marynowski). At dusk, the remaining 300 or so Polish volunteers were fired upon by three enemy aircraft with machine guns, wreaking havoc. The tragic epilogue of the battle took place at a railway messenger's booth - enraged by the resistance of the defenders, the Cossacks surrounded a group of now defenceless Poles and literally sliced them apart with sabres; those who managed to escape with their lives and civilian witnesses recounted that the Cossacks even chopped up dead bodies. About 320 soldiers died in the day-long battle. A group of wounded were taken prisoner, from which only Wladyslaw Targalski returned. The battle was of great significance for the defence of Lwów, as while Budionny was tied up in the battle of Zadwór, the 13th Infantry Division and other Polish troops had managed to arrive in Lwów; when Budionny stood near Lwów the next day, the city was already defended by trenches manned with troops and artillery - all that remained for the Bolsheviks was a retreat. The bodies of 7 soldiers were taken to Lvov. Five of them were buried in the Cemetery of the Defenders of Lwów, in the so-called Zadwórz square. The following were buried there: Captain Bolesław Zajączkowski, Captain Krzysztof Obertyński, Lieutenant Jan Demeter, Lieutenant Tadeusz Hanak and Officer Cadet Władysław Marynowski. Władysław Marynowski. Two soldiers - Cpl. Juliusz Gromnicki and Pvt. Eugeniusz Szarek, probably at the request of their families, were buried outside the Cemetery of Eaglets; their burial place has not been established. The remaining Poles were buried at the site of the battle. Initially, a makeshift cross was placed there. Later, a mound was erected, topped by a monument erected on 19.08.1928, and a cemetery was established at its foot. The plaque on the monument was founded by Filip Howzan, father of one of the fallen. Originally the inscription on it proclaimed: "To the Eaglets fallen on 17 August 1920 in the struggle for the entirety of the borderlands". In the inter-war period, patriotic ceremonies were held annually at this monument. After World War II, the monument and the cemetery were devastated. They were only restored in the 1990s through the efforts of the Society for the Care of Military Graves, headed by Eugeniusz Cydzik, and the Council for the Protection of Struggle and Martyrdom Remembrance, which financed an expert assessment of the condition of the monument and a new plaque with the inscription: "To the Polish Eaglets fallen in the fight against the Bolshevik army". The ceremonial unveiling of the renovated commemoration took place in 1995. In 2015, a general renovation of the cemetery took place, commissioned and funded by the OPWiM Council. At that time, new crosses on the graves and new grave frames were made, and restoration work was carried out on the mound. Fifty-four plaques with the established names of the fallen were placed on the retaining wall of the mound. In 2020. Grzegorz Hetnar handed over to the Ministry of Culture and National Heritage the list of the fallen at Zadwór, which he had established, consisting of 296 names. According to this list, new name plates were made and mounted on the retaining wall of the mound (the old plates were removed). Centrally between the name plates was placed a plaque with the main inscription: "To the memory of 330 Polish soldiers and volunteers from the Detachement of Rotm. Abraham, who fell in the bloody battle with the Bolshevik horse army near Zadwórz on 17 August 1920". This work was carried out in 2021 by the Freedom and Democracy Foundation as part of a task co-financed from the programme of the Minister of Culture and National Heritage "Sites of National Remembrance Abroad".