Monograph of Candidate of Historical Sciences A.N. Shaglanov is devoted to the problems associated with the heroic defense of Crimea and Sevastopol at the beginning of the Great Patriotic War of 1941? 1945, as well as the role that civilians, Crimean partisans, Red Army troops and the Black Sea Fleet played in the defense and retention of this important military-strategic and political territory of the USSR. At the same time, the book describes in detail and in detail the process of preparing for operations to liberate Crimea from Nazi invaders in 1943? 1944. The book is intended for scientists, teachers and students of higher and secondary vocational educational institutions.