In Łańcut there are graves of interned Ukrainian soldiers who died in the winter of 1919/1920 during the epidemic. After exhumation, the remains of all soldiers, were buried in a separate lot, on which a monument to the "Faithful Sons of Ukraine" was erected.
The Kiev Offensive was the result of an agreement between Poland and the Ukrainian People's Republic of 21 April 1920, known as the Piłsudski-Petlura Alliance. The purpose of this alliance was to fight jointly with Bolshevik Russia. Until the end of the war in 1920, Ukrainian soldiers bravely fought to defend Poland against the Bolshevik invasion.