The 257th had distinguished itself as part of 3rd Shock Army in the battle and siege of Velikiye Luki during the winter of 1942-43 and was redesignated as a result in April 1943. After rebuilding in the reserves of Kalinin Front as part of 2nd Guards Rifle Corps it was transferred to the 39th Army where it served for the duration of the war under various corps commands. During the late summer offensive around Smolensk it received its first battle honor and then fought through the autumn and the winter of 1943–44 in a series of grinding battles on the approaches to Vitebsk. During Operation Bagration in the summer it helped to finally secure the liberation of that city and was rewarded with the Order of the Red Banner. It then advanced into the Baltic states, winning a further distinction for its part in the battle for Kaunas, and in October crossed the Neman River into the northeastern part of East Prussia. When the offensive resumed in the first months of 1945 the 91st Guards took part in the battles for that German state and was decorated with the Order of Lenin in February, a rare award for a rifle division. Following the German surrender the 39th Army was moved by rail to the Transbaikal Military District in preparation for the invasion and occupation of Japanese-held Manchuria. When this campaign began in August the division made a successful crossing of the Khingan Mountains and was recognized with a second battle honor. Despite this fine record of service the 91st Guards was disbanded before the end of 1945.