A Clash of Hawks — Robert Charles

After news leaks out of a major oil strike in the Negev Desert, events escalate into a mad confrontation between the CIA, KGB, Egyptian, Israeli and PLO factions, culminating in a secret order to the submarine SEALYNX. The sub's commander has his finger on the button that can send atomic missiles onto three continents. Israel is at war, and her leaders decide that if she is to be the exterminated pawn of the giant oil-hungry nations, then she will not die alone!