[Cooter]

...success at making Egypt sign a peace with Isreal

Success? The peace accords led to the rise of Egyptian Islamic Jihad, whose leaders included Muhammad Atef and Ayman al-Zawahiri. Both later became top al-Qaeda leaders.

[KC_Conspirator]

Yes, success. Having Egypt recognize Isreal means that an entire arab army has been nuetralized and that Isreal's southern/western flank is secure from another pan-arab attack on Isreal. Without Egypt, another frontal assualt on Isreal will not happen and has not happened because Syria is outmatched without allies.