As it suffered heavy losses in the fighting on the Syrmian front, which amounted to 147 dead, 539 wounded and 34 missing fighters in the period from 29 October to 9 November alone, the division was withdrawn on 26 November. During the division's stay in Belgrade, it was reinforced with the newly mobilized conscripts from the liberated areas of Serbia, so that the strength of the division increased to 16,605 fighters at the end of December. The strength of a brigade within the division at that time was between three thousand and three and a half thousand fighters, which was close to the size of the entire division before coming to Serbia. Filled with new fighters, the division did not change its former national and social composition, because the vast majority of fighters were still Serbs and peasants. In the period from the return to the front, in early January, to the breakthrough of the front, in early April 1945, the division had about 2,000 fighters out of combat, so in mid-April, its strength decreased to around 12,000 fighters. Only in the battles for the breakthrough of the Syrmian Front, from April 4 to 13, the division had losses of 319 dead and 1,025 wounded fighters. In all battles of the 6th Lika Division on the Syrmian Front, from the end of October to the end of November 1944 and from the beginning of January to the beginning of April 1945, 1,657 fighters of the division were killed.