I'm currently reading If a Tree Falls at Lunch Period by Gennifer Choldenko.  It's one of the battle books, and although I've already read it, I'm reading it again to make sure that I understand it.  This is one of those books that you definitely have to read more than once to understand the whole thing.  Since this is the second time I've read this, I've realized that almost everything that happens in the book foreshadows some later event.  I'm really enjoying the feeling that I understand why things are happening, not just wondering why that ended up like it did and how did that character do that, anyways?  So if you are in the battle, and even if you aren't you definitely have to read this book.  I might even read it a third time once battle season id over so I can see what I missed the second time!
~Madi Hawkins