Israel entered its latest conflict with Hamas armed with a high-tech arsenal, real-time battlefield intelligence and strong domestic support for dealing a heavy blow to Hamas.
But again Friday, Israeli forces were taken by surprise, this time with two soldiers killed and one taken prisoner when militants once again attacked from a tunnel from Gaza.
As frustration grows in Israel over the military’s limited success in trying to neutralise Hamas, the militant Islamic group that governs Gaza, some military experts say it is increasingly evident that the Israel Defense Forces have been operating from an old playbook and are not fully prepared for a more sophisticated, battle-ready adversary. The issue is not specifically the tunnels - which Israel knew about - but the way Hamas fighters trained to use them to create what experts in Israel are calling a “360-degree front.”
“Hamas has changed its doctrine and is using the tunnels as a main method of operation,” said Israel Ziv, a retired general who headed the military’s Gaza division and its operations directorate. “This is something we learned amid the fighting.”
Of the 32 fortified tunnels the Israeli military has exposed, at least 11 run deep beneath the border into Israeli territory. Others are part of an underground labyrinth inside Gaza connecting buildings, weapons stores and concealed rocket launchers.
Israeli troops in Gaza described Hamas gunmen who vanished from one house, like magicians, and suddenly popped up to fire at them from another. And while Hamas fighters are able to use the tunnels to surprise the forces from behind and to attack those in the rear, Israeli soldiers find themselves having to improvise.
In the Gaza war that began in late 2008, 10 Israeli soldiers were killed, four of them from friendly fire. This time, 63 soldiers have been killed, mostly in combat, and one has been taken prisoner.
“The military has been playing it by ear,” said Amos Harel, a military affairs analyst for the newspaper Haaretz, who added that despite its knowledge of the tunnels, Israel’s military planners did not draft a new doctrine for prosecuting a land invasion. “But it is pretty good at doing that, and has done it many times.”
In this latest asymmetrical war with Hamas, the third in five years, Israel thought it was prepared. It had built up an integrated communications systems able to transfer intelligence in real time to air and ground forces, an advancement that military officials described as a “force multiplier.”
Precision-guided missiles have destroyed up to a third of Hamas’ rocket stocks, according to Israeli officials, as well as hundreds of houses or apartments that the military described as militant command-and-control centers and many other weapons production sites and stores. In 24 days of intense bombing, 4,300 targets have been hit.
Hamas still has up to 4,000 rockets, beyond the more than 3,000 that it has fired into Israel. More than 1,600 Palestinians have been killed, many of them civilians, according to Gaza officials, stirring international outrage and raising demands for a cease-fire.
What Israel was apparently less ready for was Hamas fighters who are willing to engage and are trained to use tunnels, a tool of war whose roots go back to antiquity. During Israel’s last ground incursion in the winter of 2008-09, Hamas fighters largely avoided clashes, melting into the crowded urban landscape. This time, they were prepared for combat.
The tunnels themselves, while well known, have also presented a challenge. After years of research there is still no technological solution for detecting and destroying them from afar, officials said. The shafts leading to Hamas’s labyrinth are “inside houses, so we won’t see them from the air,” said Hecht, the military analyst.


