During World War II, the Rudnicka Forest was the base of Soviet partisan units. In the summer of 1944, after the Operation "Ostra Brama" (Gates of Dawn), the units of the Home Army commanded by Maciej Kalenkiewicz "Kotwicz", Bolesław Wasilewski "Bustromiak", Czesław Dębicki "Jarema" and "Torik" took refuge in the Forest. On 6-7.01.1945, about 25 soldiers of Lieutenant Czeslaw Stankiewicz's "Komar" unit were killed in battle with the encircling NKVD troops. It was not until the spring that the Polish groves buried the bodies of 22 soldiers in a common grave and erected a birch cross on the grave. By then, 2 or 3 bodies of the fallen had been taken away surreptitiously by their families. The bodies of another 3 dead were found by women picking berries about 500 m south of the grave made by the gamekeepers. The remains were buried where they had been found and a small cross was erected on the grave. This place has not been found today.
In the 1950s or 1960s, Witold Aladovich, a former Home Army soldier, erected a metal cross on the mass grave of 22 soldiers. It stood until July 1992, when the Warsaw Branch of the Society of Friends of Grodno and Vilnius cleaned up the grave and placed a new metal cross with a red and white plaque with the inscription: "Ś+P Here rest 25 soldiers of the Home Army from the "Komar" Division who died on 6 I 1945. Honour their memory". This commemoration was replaced by the present monument with a cross. This work was funded by the Council for the Protection of Struggle and Martyrdom Sites, and the monument was unveiled on 10.07.1993. Around 2013 the cross standing at the top of the monument was replaced by a new one, whose author was Edward Kurkianiec. The inscription on the monument reads: "Here lie 25 soldiers from the Self-Defence Detachment of the Wileńska Home Army under the command of Lieutenant Czesław Stankiewicz, pseud. "Komar", killed on 6-7 01 1945 in an unequal fight with the forces of the NKVD. Honour their memory". The plaques on either side of the main inscription bear the names of the fallen soldiers.