Admiral of the Fleet, First Sea Lord, Lord Lewin is perhaps best known for his role as Chief of Defence Staff during the Falklands War. However, this was merely the culmination of a 40-year career that encompassed every naval conflict since the World War II and saw some of the widest-reaching reforms made to the Royal Navy. The author exposes the machinations of Whitehall and the defence establishment as well as describing Lord Lewin's key role in such episodes as the great Carrier Battle during Denis Healey's defence review, the decision to proceed with Trident, and the Falklands War.