The airmen were called Machalniks, the volunteers, Jews and Gentiles alike, Americans, Brits, and others from the English speaking nations, who went to fight for Israel in the 1948 war. Most went for altruistic reasons in the wake of the Holocaust in Europe. Some went for the adventure. One former American airman went to flee from a murder warrant. Tom O'Brien is tasked by the CIA to find him and send him back to America for trial, but unbeknownst to the agency is that the Soviet intelligence services are looking for this man also. The cold war is about to turn nuclear and the American has secrets the Soviets badly want. The Ministry of State Security get their hands on him first, but O'Brien follows them all the way to Morocco for a final showdown.
Historical background is good. Characters interesting, but not fully developed. The movement from point to point - the compelling reasons - the motives - all seem to be not really in place.