Military history has plenty of successful campaigns by celebrated commanders.  But what of the wartime tragedies of incompetence, miscalculation and misfortune that have dishonoured the names of once-proud generals, wasted the lives of thousands of soldiers and resulted in loss of precious territory and power?  This book covers twenty encounters, including the bloody Battle of Bannockburn in 1614, Napoleon’s humiliation in Moscow in 1812 and Custer’s shocking defeat at Little Bighorn in 1876.  Illustrated with black and white photos.