The topic of collaboration during the Great Patriotic War is one of the most pressing and topical. Collaborating with the enemy is considered the most serious crime throughout the world. That is why an accurate answer to the question about the number of traitors is so important, because to this day disputes about the number of Soviet citizens who collaborated with the enemy during the war do not subside. What were the motives of these people, were they traitors and is there an excuse for them? New book by I.G. Ermolova will give a reasoned answer to these questions and talk about the fate of Russian collaborators.