The Ultimate Battle tells the full story of the Battle of Okinawa as it has never been told before, utilizing the same up-close narrative style and "grunt's-eye" view of the action that distinguishes Sloan's Brotherhood of Heroesfrom other war books. It is a gripping story of heroism, sacrifice, and death in the largest land-sea-air operation in US history. From April through June 1945, more than 250,000 American and Japanese lives were lost (including those of nearly 150,000 civilians who either committed suicide or were caught in the crossfire).

The Ultimate Battle is a searing re-creation of the Okinawa campaign as seen through the eyes of men who were in the midst of it, and it is filled with fresh insights that only these men can provide.