About the book: 1989 / Publisher's abstract: Military operations against the Black Sea Fleet On June 22, 1941, the Nazis began with intensive mine laying, carried out by aviation forces. The sailors of ships and coastal units of the Security of the Water District of Sevastopol and other bases immediately entered the fight against the mine danger. This book tells about their heroism and courage, revealing the secrets of the latest German mines, and the participation of the Ovrovites in landing operations. The final chapter is devoted to the post-war education and service of the formation's sailors, who continue the glorious traditions of front-line soldiers. The military-historical essay is intended for the general reader.