Please check other comments. There are hints about what we can do.

To accommodate the growing population, Israelis figured out how to turn a desert into a livable land. There are plenty of deserts in the adjacent areas. If instead of spending money on guns and bullets, both sides had used them to turn deserts into farmlands, there would be enough land to satisfy the claims of Palestinians and for everyone to become more prosperous.

Lasting peace requires mutual trust, which can be built only by prospering through working together.