These fierce battles became the “LAST PARADE” of the Red Army mechanized corps in the summer of 1941. This counteroffensive was supposed to close the huge gap that had formed in the Minsk direction after the border disaster and restore the position of the Western Front. This great tank battle, in which over 2,000 armored vehicles took part on both sides (much more than at Prokhorovka!), remained “in the shadows”, since the documentation of the Soviet units was almost completely lost. Why the counterattack of the 5th and Was the 7th Mechanized Corps of the Red Army in the Senno-Lepel area unsuccessful? Whose fault was it that we failed to realize our superiority in armored vehicles? How were the latest KV and T-34 lost? Why did our tank armadas burn out in a matter of days, without achieving a turning point in the fighting and without stopping the Germans?.. A NEW BOOK by a leading military historian, based on materials from not only domestic but also foreign archives, answers all these questions.