I think America made a deal with Russia to pull out the missle defense shield in Europe, if Russia stops the S- 300 missle sale, to Iran. In return, Israel promised the United States a two state solution. Thats just my 2 cents, for what it's worth.
Of course, Arabs belong in Israel at all! And Israel should never give the Arabs any Jewish land, no matter what hand shake took place, or what papers were signed.