The Israeli historian Shlomo Sand has attracted attention by resuscitating long-discredited theories about the supposedly non-Middle Eastern origins of the Jewish people and ostentatiously declaring that he himself has ceased to be a Jew. Much more interesting than his arguments are their sources, and the way they have been eagerly endorsed by Arab anti-Semites, as Shaul Bartal writes:

Sand’s ideas regarding race theory are borrowed from Nazi, Islamic, Arab, and Palestinian sources that claim to have scientifically proved that the Jews of today do not descend from ancient Israelite stock. One example is a book by the Islamic activist Hassan Bash, at-Tarbiya as-Sahyonia, Min Ansariyat at-Torah ila Damu’ya al-Ihtilal (“Zionist Education, from the Racism of the Torah to the Bloodletting of the Occupation”). . . . [In the Arab world,] Bash is considered a leading researcher of Zionist culture and Jewish religion and has written 32 books, most of which slander the Jewish religion, the Torah, and Christianity. . . .

The unique aspect of Sand’s book thus is not its content but rather its context. Sand’s innovation is that he, a Jewish professor of history from a leading “Zionist” university, step-by-step, in beautifully phrased Hebrew, justifies and approves all the Palestinian historical claims. It is no surprise that The Invention of the Jewish People became a major best-seller in the Arab world and is treasured by Palestinians.

When the IDF finally caught up with the late Hamas leader Yahya Sinwar, he wasn’t deep inside a subterranean lair, as many had expected, but moving around the streets the Rafah. Israeli forces had driven him out of whatever tunnel he had been hiding in and he could only get to another tunnel via the surface. Likewise, Israel hasn’t returned to fight in northern Gaza because its previous operations failed, but because of its success in forcing Hamas out of the tunnels and onto the surface, where the IDF can attack it more easily. Thus maps of the progress of the fighting show only half the story, not accounting for the simultaneous battle belowground.

At the beginning of the war, various options were floated in the press and by military and political leaders about how to deal with the problem posed by the tunnels: destroying them from the air, cutting off electricity and supplies so that they became uninhabitable, flooding them, and even creating offensive tunnels from which to burrow into them. These tactics proved impracticable or insufficient, but the IDF eventually developed methods that worked.

John Spencer, America’s leading expert on urban warfare, explains how. First, he notes the unprecedented size and complexity of the underground network, which served both a strategic and tactical purpose:

The Hamas underground network, often called the “Gaza metro,” includes between 350 and 450 miles of tunnels and bunkers at depths ranging from just beneath apartment complexes, mosques, schools, hospitals, and other civilian structures to over 200 feet underground. . . . The tunnels gave Hamas the ability to control the initiative of most battles in Gaza.

One elite unit, commanded by Brigadier-General Dan Goldfus, led the way in devising countermeasures:

General Goldfus developed a plan to enter Hamas’s tunnels without Hamas knowing his soldiers were there. . . . General Goldfus’s division headquarters refined the ability to control forces moving underground with the tempo of the surface forces. Incrementally, the division refined its tactics to the point its soldiers were conducting raids with separate brigades attacking on the surface while more than one subterranean force maneuvered on the same enemy underground. . . . They had turned tunnels from obstacles controlled by the defending enemy into maneuver corridors for the attacker.

This operational approach, Spencer explains, is “unlike that of any other military in modern history.” Later, Goldfus’s division was moved north to take on the hundreds of miles of tunnels built by Hizballah. The U.S. will have much to learn from these exploits, as China, Iran, and North Korea have all developed underground defenses of their own.