Two options this month from Chantel's goodreads list--with a World War era theme (we nixed Catcher in the Rye).
1. The Book Thief by Markus Zusak
Set in Nazi Germany, it describes a young girl's (named Liesel Meminger) relationship with her foster parents, Hans and Rosa, and the other residents of their neighborhood, and a Jewish fist-fighter who hides in her home during the escalation of World War II. Published in 2005, it has won numerous awards and has been listed on the New York Times Children's Bestseller List for over 190 weeks
or the shorter read that also has a movie made of it if you get a chance to watch it...
2. The Boy in the Striped Pajamas by Johyn Boyne
A novel concerning the forbidden friendship that between two boys on opposite sides of a fence: an innocent and unaware eight-year-old German boy and a Jewish concentration camp prisoner.