During many decades 2th Soviet-Finnish war was, and till today remains yet, by "unknown", "forgotten" war.Совинформбюро did not report to the soviet people neither about beginning (on June, 25 1941) nor about completion (on September, 19 1944) of war that carried away lives more than 100 thousand fighters and commanders of Red Army and did possible the long-term blockade of Leningrad.There is the salted Beef in the new book of the known Russian historian М. the "military constituent" of Soviet-Finland opposition is considered in 1940-1944 Greater part of the archived documents used by an author is first entered in a scientific turn. The special attention is spared to the events of June, 25 1941, т. of е. to the massed blow of soviet aviation to the objects of Finland, that served a subject for untiing of war.The study of the battle operating on Finnish front gives an unique opportunity to the readers to give a glance on Red Army of standard of 1941 in благоприятнейших for her terms: in advance отмобилизованные troops begin battle actions in moment chosen by them, on the plans of own command, against an opponent considerably yielding in technical equipped.The real events play role of original "machine of time", allowing to answer the sacramental question of soviet history, : "And that would be, if in summer 41th was Stalin able to pass Hitler"?