Arabs are openly saying they will attack Israel again as soon as they feel they can win, peace agreement or no peace agreement. Absolute majority of Israelis don't care about any particular piece of land, and certainly have no interest in occupying any population. But they feel the only thing that keeps them alive is strong Israeli army, completely irrespective of anything else they do. Whatever land they give to Palestinians, whatever peace agreements they sign, they will be attacked again the moment Arabs feel they can win. Israel's destruction has always been the Arab's openly declared goal, and still is, peace agreement or no peace agreement.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)