On October 10, 1941, the 3rd Wehrmacht Panzer Group and the 9th Field Army, trying to surround the troops of the right wing of the Western Front of the Red Army and go to the rear of the North-Western Front, launched an attack on Kalinin. On October 17, 1941, German troops occupied Kalinin. For a long two months, the city was under German occupation. The liberation of Kalinin was the result of a fierce twelve-day battle in December 1941. In this operation, there were no raids of tank brigades, counter battles of mobile formations and the struggle for the airfield node with the massive use of aviation. The December battle for Kalinin once again showed that war is, first of all, hard work. Breaking into the defense of the 9th Field Army of the Wehrmacht, units and formations of the Kalinin Front slowly but surely destroyed enemy strongholds. The new book by Maxim Fomenko is a detailed story about the battle for Kalinin. About the fall of the city, and its liberation.