Why the USSR did not attack Germany first

A glorious anniversary is approaching - 70 years of one of the most significant events of the twentieth century - the Victory over fascism. Once upon a time everything was simple and clear. We knew it, that aggressive Germany treacherously attacked the peaceful USSR. There is no USSR today, and all historical facts are subject to revision. In this article, there will be no clarifications like: «кто на кого хотел напасть и