Author D.M. Ulmer makes use of a rich and varied background to bring his superb novels to life. "Using true incidents," Ulmer says, "spices the tale and brings a certain credibility not found in contrived scenarios. Though I must remember to change names and protect the guilty." Shared Glory tests limits of this concept as the plot is set in a time when Ulmer had barely reached his teens. The book, fraught with World War II action scenes, required considerable research into submarine warfare in the southwest Pacific and aerial combat against Nazi Germany and the Empire of Japan. In the former,...