Mikhail Nikolaevich Tukhachevsky, a career officer of the old Tsarist army, joined the Red Army in March 1918 immediately after its formation. During the Civil War, he proved himself as a talented commander: his army (which included the famous division of V.I. Chapaev) played a decisive role in defeating the superior forces of the Whites on the Volga, the Urals and Siberia, which predetermined the final collapse of the "Supreme Ruler of Russia" Admiral Kolchak. For these military operations Tukhachevsky was awarded the Order of the Red Banner, and for the victory over Kolchak – an Honorary revolutionary weapon. In his book, M.N. Tukhachevsky tells about the battles with Kolchak, about the features of the actions of the Red Army at this time, ranging from a series of small strikes ("the war of bedbugs") to large-scale offensive operations. The experience of the Civil War serves him to extract lessons on the strategic and tactical preparations of the Red Army, including for individual branches of the armed forces – infantry, artillery, mechanized formations, military engineering troops and others.