Here's a read giving some of the Palestinian perspective, a massacre by Israel: http://www.aljazeera.com/indepth/features/2012/09/201291672947917214.html http://en.wikipedia.org/wiki/Sabra_and_Shatila_massacre
For a full background, read this book by a Harvard PhD, and special advisor to the CIA, NSA, UN, Joe Biden and John Kerry: http://www.amazon.com/The-Arab-Israeli-Conflict-A-History/dp/0195172302/ref=sr_1_2?ie=UTF8&qid=1353249437&sr=8-2&keywords=david+w.+lesch