There was obviously a lot of double dealing going on. Everybody seems to have been promised the same thing at one point or another. It's hardly fair for anyone, but the ones who have been treated the most unfairly are the Palestinians. They are the ones who have given up the most. They are, after all, the ones who were living on that land for many hundreds of years prior to the establishment of the state of Israel (and I do include Jewish Palestinians of Arab descent when I use the term "Palestinian" in this context).