Last week, Egypt embarked on its most extensive military operation in the Sinai peninsula in almost half a century. The target of this unprecedented deployment is an array of disaffected Egyptians and jihadi foreigners intent upon defying the seat of Egyptian power and sovereignty centered in Cairo.

Israel is a key partner in this Egyptian effort. Ironically, the anarchy in Sinai has prompted a new era of enhanced security cooperation between Israel and Egypt. The promise of the Arab Spring may be uncertain, but the Jerusalem-Cairo axis is one arena where a newly energized system of relations is being forged on the crumbling foundations of the old order. Egypt and Israel are creating a new basis for mutually beneficial relations, in the process ignoring not only key aspects of their historic peace treaty signed in 1979, but also reducing the role of what was once deemed to be the critical actor in that relationship — the United States. 

For two generations the United States was at the center of a strategic partnership between Cairo and Jerusalem. Washington built its regional security strategy around the rapprochement that followed the October 1973 War and invested heavily in its vitality. Economic and military aid to the two nations dwarfed similar US programs elsewhere. “Investing in peace” established a solid security and political rationale for supplying billions to both Egypt and Israel.

An iconic photograph taken at the treaty signing ceremony, showing a beaming US President Jimmy Carter standing between Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin, their hands outstretched in a tripartite handshake, said it all. The United States was the critical midwife of this relationship, and its support was vital to its maintenance.