You are holding in your hands a collection "Secrets of submarine warfare. Little-known pages of World War II on .mor. 1939-1945." 1995 marks the 50th anniversary of the end of this, the most difficult and bloody war in the history of mankind. For six years, several dozen countries of the world with a population of 45 of all inhabitants of the globe have been continuously fighting on almost all continents, seas and oceans. Unfortunately, over these half a century, domestic military historians have not pampered their readers with a wide selection of literature on the subject of World War II, both in general and in its individual aspects. And in this sense, naval warfare is not. alas, an exception. Suffice it to say that in our country - perhaps the only and all participants in the Second World War - so far not a single monograph has appeared on this topic by a domestic author.