So, "the leaders of Israel knew that their left flank was secure as they went out to war, built settlements and negotiated peace on the other fronts". The first part is wrong - Egypt was not a military ally, and did not accept Israeli aggression against other countries. Egypt certainly did not agree with the illegal expansion of Israeli terroritory and settlements. As for peace negotiations on other fronts, you must be joking. Israel never negotiated peace on other fronts, it preferred war.
EU's Tusk warns Turkey to cut refugee flow (Reuters)
from the article: Mubarak's departure thwarted Israeli strike on Iran