Two points regarding this Middle East conflict: The Palestinians were attacking Jews even when they controlled all the lands that are under dispute. Returning these lands to the Palestinians will not end the violence--it would be suicidal for the Israelis. The violence won't cease because it is promoted by Muslim clerics and politicians.
The Palestinian-Israeli conflict is not an isolated issue. Muslim gunmen (terrorists) are attacking other religious groups in Indonesia, the Philippines, Algeria, India, Pakistan, Russia, Egypt, Afghanistan and elsewhere. Another Dark Age is a possibility if Muslims gain control of all the countries of conflict. Dark ages come about when religious authorities are able to impose their doctrinaire views.