Like a great dynasty that falls to ruin and is eventually remembered more for its faults than its feats, Arab nationalism is remembered mostly for its humiliating rout in the 1967 Six Day War, for inter-Arab divisions, and for words and actions distinguished by their meagerness. But people tend to forget the majesty that Arab nationalism once was. In this elegantly narrated and richly documented book, Adeed Dawisha brings this majesty to life through...