Publisher's abstract: The work of Stephen Wentworth Roskill, one of the leading military historians, was prepared at the request of the Annapolis Naval Institute (USNI) for the series “Naval Actions in the Second World War” - the most authoritative publication on this topic. “The Hunt for Bismarck” and the Battle of the Mediterranean, polar convoys and the fight against German submarines, fighting in the Pacific Ocean and landing operations - all phases of the war are reflected in this book. The combat operations of one of the largest fleets of the Second World War, described with excellent knowledge of the subject, will not leave military history buffs indifferent.