How did war and revolution reshape the Middle East?

The 1973 Yom Kippur War had a lasting effect not only on the combatants — Egypt, Syria, and Israel — but across the Middle East. Egypt and Syria had again been defeated, but Israelis also felt more vulnerable after the war. The intensity of the global economic disruption caused by the oil embargo empowered oil-exporting nations like Saudi Arabia, Libya, and Iraq. The Middle East faced deepening divisions, which added to the conflict between Israel and its neighbors. The region was reshaped by the increasing wealth of oil producers relative to other Arab states, and rising Islamic militancy led to revolution in Iran, as well as a spreading religious challenge to the rule of secular, modernizing dictatorships in countries like Egypt.