No need for four year interim agreements. Israel has had sixty odd years to cease taking Palestinian Territory and abide by International Law and has not. Implement the Arab Peace Initiative. Station Nato troops on the borders and be done with it. Those settlers wishing to remain in Palestinian Territory become Palestinian citizens or return to Israel proper.
Erekat on Palestinian radio: Israel's isolation is causing it to act belligerently (Haaretz)
from the article: Meretz presents four-year path to peace based on Arab League initiative