Many film studios reserve some of their biggest releases for the last two weeks of the year. One of the movies premiering on Christmas day is called War Horse  and is based on a historical fiction book of the same name written by Michael Morpurgo . The film is set during World War I but it is not a war movie , according to director Steven Spielberg. Instead, the movie focuses on the connection between people and animals during wartime.
If the movie sparks your interest in the subject, try these nonfiction titles:
Always Faithful: A Memoir of the Marine Dogs of WWII by William W. Putney
The Dogs of War: The Courage, Love, and Loyalty of Military Working Dogs  by Lisa Rogak
Civil War Curiosities: Strange Stories, Oddities, Events, and Coincidences  by Webb Garrison
Love, War, and Circuses: The Age-Old Relationship Between Elephants and Humans  by Eric Scigliano
Horse Soldiers: The Extraordinary Story of a Band of U.S. Soldiers Who Rode to Victory in Afghanistan  by Doug Stanton