The famous statement by Russian Emperor Alexander III—"Russia has only two allies: the army and the navy"—has been proven true multiple times throughout Russian history. During the Great Patriotic War, the Soviet Navy played a crucial role—Soviet sailors and naval commanders demonstrated exceptional skill and combat readiness, while Soviet shipbuilders proved they could create masterpieces of military engineering even under the most challenging wartime conditions. This book provides an in-depth look at the formation and evolution of the Red Fleet of Workers and Peasants, as well as the history of Soviet submarines and warships of various classes—battleships, cruisers, destroyers, sea hunters, and torpedo boats—including their design features, armament, and combat use. Each vessel is described with numerous illustrations and tables detailing technical specifications. Additionally, the book features rare photographs that vividly depict the most common types of combat ships in action during the Great Patriotic War.