How about Traveller, by Richard Adams. (He wrote Watership Down, among others).
Traveller is Robert E. Lee's horse during the civil war, and the story is told through the horse's eyes. It's a great book. I haven't read it for years because I lost my copy.
I might have to find another one! Amazon
.com: Traveller (9780440204930): Richard..."> Amazon.com: Traveller (9780440204930): Richard...