Dogs, horses, elephants, glowworms, camels, pigeons and dolphins are some of the animals that accompanied troops during battles throughout history.  Photographs and drawings illustrate their heroism around the world.  Within the pages are additional boxes of information titled, “What Would You Do?”, “Remembering Bravery”, Number Crunching”, and “Secret Heroes”.  Words in bold font are defined in the glossary.  Also included are stories of how some of these animals helped their people.  Nonfiction and fiction books are included in the bibliography.  All are at similar reading and interest levels.  Also included are 3 web sites, the address of a place to visit, and an index.  This is a very informative book and would make a great addition to an upper elementary or middle school library collection.