Under United Nations Resolution 242, Israel was to dismantle the Jewish settlements from the West Bank.
According to the 1993 Oslo Accord, the Palestinians were told they’d have a viable state in Gaza West Bank, but not a single Jewish settlement was dismantled under Oslo. In fact, quite the contrary - the settlers went from 250,000 to 380,000 in the West Bank,
But here's the really startling part - 5,000 Jewish settlers in the Jordan Valley consume 75% of the water, leaving the remainder for 2 million Palestinians to live on. Kind of gives you some insight into the resentments in that part of the world.
The statistics are from "Sleeping with the Devil"