How weird that the New York Times could write an entire article about Netanyahu's insistence that Israeli forces remain in the Philadelphi Corridor (the area along the border between Gaza and Egypt) without any mention that doing so violates the 1979 Egypt-Israel Peace Treaty. In fact, Israel has already violated it when it invaded Rafah a few months ago. Egypt did not seriously protest Israel's violation at the time, largely for domestic reasons. But it is one thing to look the other way when there is a temporary infraction. It's another thing for the Israeli leader to say that he is committed to have Israel violate the treaty from now on.
The U.S. "guaranteed" the 1979 treaty largely by paying off the Egyptian government with a generous foreign aid package. 45 years later, Egyptian leaders have grown pretty dependent on the huge military aid it receives from the U.S. I don't think Sisi could survive as a leader if the officers in the prop up his military led government have their gravy train cut off. But I also don't see how he can tolerate a permanent violation of the treaty with Israel without risking a really serious public backlash.