Forgiving Ararat, Gita Nazareth
What is God, What is Love, What is Justice? Has Germans, Jews, one or two Arabs, and takes place in a claustrophobic and actually kind of scary spiritual plane, Shemaya Station, on or about the time of the death of the main character, which death she doesn't accept.
Tooth and Nail, Craig DiLouie.
There are enough zombie books around these days that one challenge in the reading (and probably the writing) of them is to not have the story be infected, as it were, by every other book you've read. In this book the zombs are called, without affectation, Mad Dogs, and it actually works really well. The story develops through the eyes and actions of Charlie Company the day after they are recalled from Iraq to take up a security role in Manhattan.
(Also, while the book has nothing whatsoever to do with Modern Warfare III, if you've recently played that fps, the story is really easy to visualize.)