In the era of the Soviet Union, losses in the Battle of Tannenberg Line were not mentioned in Soviet sources. In recent years, Russian authors have published some figures but not for the whole course of the battle. The number of Soviet casualties can only be estimated by looking at other figures. In the attack of 29 July, 225 men survived of the Soviet 109th Rifle Corps carrying the main weight of the assault. Of the 120th Rifle Division, 1,808 men were lost; killed or wounded. The rest of the Soviet rifle corps lost their capacity for further attacks. In the same attack, the German forces lost 600 men. The headquarters of the 2nd Shock Army reported 259 troops fit for combat within the 109th Rifle Division and a total exhaustion of the army on the night before 1 August, which probably meant a few thousand troops fit for combat out of the 46,385 men who had initiated the Estonian Operation on 25 July. The losses of the 8th Army were similar to that.