QUESTION: Israel and Palestine...How do you help students understand?

So, in my world history class we talk about current events and I try to point out things that relate to what we have/are/will be studying in class. So, the conflicts between Israel and Palestine usually come up and I am figuring out that because so much of has happened before my students were really aware that they have no background information to understand why these conflicts keep happening. So, I want to do a mini-unit on this conflict...there are so many resources out there that I'm having trouble creating this. I was wondering if anyone knew of a concise lesson plan or resource that gives a basic background on the conflict. Any other advice on how to help students understand this age-old conflict is more than welcomed too.