Well I guess that the Egyptians like the Saudis dont like the mother of all terrorists iran either. Normal arab countries like them are welcome to unite with Israel. Together we can kick out every last single terrorist from the region and finally have some peace and quit.
U.S., allies conduct 20 air strikes in Syria and Iraq against ISIS, says U.S. military (Reuters)
from the article: Egypt army launches crackdown on north Sinai terror groups