Last week, a major two-day conference took place in Abu Dhabi, where participants from around the world gathered to discuss issues concerning the Middle East. Surprisingly, Israel was mentioned only once—when an American diplomat criticized its policies. This, writes Evelyn Gordon, is typical of a new attitude in the Arab world: despite continuing hostility toward Israel, there is also a recognition that there are much bigger problems than the Jewish state. Many Arab statesmen are in fact concerned that the U.S. is not supporting Israel enough:

[I]n this new Middle East, a U.S.-Israel spat probably generates more worry than glee in Arab capitals. Once, it was an Arab article of faith that America cared little about Arabs but greatly about Israel. Thus, to the degree that Arab and Israeli concerns overlapped, as they do now on issues ranging from Iran to IS, America could be trusted to deal with the threat. Now, the Obama administration still appears to care little for Arab concerns; it seems hell-bent on striking a grand bargain with Iran and withdrawing from the Mideast. But the Arab world’s former ace in the hole to prevent such developments–Israel’s influence in Washington—suddenly looks more like deuce.

On Tuesday, a Hizballah drone attack injured three people in northern Israel. The next day, another attack, targeting an IDF base, injured eighteen people, six of them seriously, in Arab al-Amshe, also in the north. This second attack involved the simultaneous use of drones carrying explosives and guided antitank missiles. In both cases, the defensive systems that performed so successfully last weekend failed to stop the drones and missiles. Ron Ben-Yishai has a straightforward explanation as to why: the Lebanon-backed terrorist group is getting better at evading Israel defenses. He explains the three basis systems used to pilot these unmanned aircraft, and their practical effects:

These systems allow drones to act similarly to fighter jets, using “dead zones”—areas not visible to radar or other optical detection—to approach targets. They fly low initially, then ascend just before crashing and detonating on the target. The terrain of southern Lebanon is particularly conducive to such attacks.

But this requires skills that the terror group has honed over months of fighting against Israel. The latest attacks involved a large drone capable of carrying over 50 kg (110 lbs.) of explosives. The terrorists have likely analyzed Israel’s alert and interception systems, recognizing that shooting down their drones requires early detection to allow sufficient time for launching interceptors.

The IDF tries to detect any incoming drones on its radar, as it had done prior to the war. Despite Hizballah’s learning curve, the IDF’s technological edge offers an advantage. However, the military must recognize that any measure it takes is quickly observed and analyzed, and even the most effective defenses can be incomplete. The terrain near the Lebanon-Israel border continues to pose a challenge, necessitating technological solutions and significant financial investment.