Surrounded on all borders but its western coastline by hostile and aggressive neighbors, the state of Israel resembles the walled city of the Middle Ages. But its walls are not stone and mortar, they are flesh and blood—they are the soldiers, both men and women—the airmen, the intelligence, the tankscorpsmen and the paratroops. These young people—from the old ghettos of Europe, from the cities of North Africa and Asia, native-born Sabras—are the protecting wall that keeps Israel free.