The first book about the history of the formation of the Black Sea Submarine for the first time most fully tells about the Submarine Forces of the Black Sea Fleet for the period from 1907 to 1935. This book is a kind of appeal to the memory of the past, on the pages of which you will see people of an unusual and very risky profession - submariners, learn the history of the creation of the Submarine Fleet, get interesting information about the submarines of the Black Sea Fleet at the first stage of their development. The author's intention to create a trilogy - This book covers the period from 1907 to 1935, the second - the period 1941-1945, the third - the period 1945-2014. A documentary narrative about the submarines of the Black Sea Fleet, based on archival sources and documentary materials, is accompanied by rare photographs and excerpts from documents kept for a long time under the heading “Secret”