The Royal Navy's operations in World War II started on 3 September 1939 and continued until the surrender of Japan in August 1945 — there was no 'phoney war' at sea. The navy played a central role in the evacuation of the retreating British army at Dunkirk, and later orchestrated the sinking of Germany's mighty battleship and Hitler's pride, the Bismarck. Without the Royal Navy's attention to the defence of Britain's seaborne trade — especially in the struggle against German U-boats in the Battle of the Atlantic — there would not have been food for the country, fuel for the RAF's operations or supplies to keep the army fighting in Europe, North Africa and the Far East. Yet the outstanding naval contribution to Britain's survival and eventual victory came at a heavy cost in terms of ships and to the men who had to face not just the violence of the enemy, but also the violence of the sea. This book argues that World War II was, effectively, a maritime war; it was the Royal Navy's war.

Since 1900, the Royal Navy has seen vast operational changes. This book tells the story, not just of victory and defeat, but also of how the Navy has adjusted to a century of rapid technological and social change. The extensive reforms made by Admiral Fisher at the dawn of the twentieth century saw the navy's nineteenth-century wooden fleet replaced with the latest modern technology — battleships (including the iconic dreadnoughts), aircraft carriers and submarines. In World War I and World War II, the navy played a central role, with unrestricted submarine warfare and supply blockades becoming an integral part of combat. However it was the development of nuclear and missile technology during the Cold War era which drastically changed the face of naval warfare — today the navy can launch sea-based strikes across thousands of miles to reach targets deep inland. This book places the wars and battles fought by the navy — from Jutland to the Falklands — within a wider context, looking at political, economic, social and cultural issues, as well as providing a thorough operational history.