The surrender of General Cornwallis at Yorktown, 1781 Photo: courtesy Library of Congress Britain’s loss of America in the War of Independence (1775-1783) is typically attributed to the failings of its key political and military decision makers who were, in Andrew O’Shaughnessy’s words, “associated with opposition to progress and with attempting to introduce an authoritarian style of government”. They have, he writes, become cartoon figures of incompetence and mediocrity in a story with an inevitable ending, “as history progresses towards modernity”. Not any more. In this fascinating, well written and extensively researched study of 10 of those British decision makers...