[Goater]

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With the land-for-peace strategy, once the land is returned, there is no further incentive for the Arabs to honor the deal (other than perhaps the fear of the IDF).

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Whilst I think it is a little more complicated, this is unfortunately true. The Egyptians effectively facilitated the Hamas takeover of Gaza (and their continued supremacy there) by doing nothing to stop the rampant weapons and explosive smuggling through their border (with Gaza). Apart from possibly Jordan, the Arab countries are more than happy to encourage and support the ongoing war against Israel by proxy. This is one of the main reasons I opposed the Gaza withdrawal at the time - the absence of the IDF made it inevitable that Hamas would increase its power, take over and make a future peace deal between Israel and the Palestinians in general almost impossible.