London possesses at least nine monuments celebrating the lives of two of the country’s military heroes: Arthur Wellesley, the Duke of Wellington, and Horatio Nelson, Vice Admiral, and fleet commander. Nelson, of course, has prime position on his column overlooking the square named after his famous victory in 1805, while Wellington has his triumphal arch on the corner of Hyde Park — which was originally capped by a huge statue of the duke on his horse, Copenhagen. And, but for the death of the high-spending George IV...