The missiles that struck the cities of Arad and Dimona in southern Israel on Saturday evening wounded approximately 175 people, including at least 10 in serious condition. Among the seriously injured: a 12-year-old boy from Arad with shrapnel wounds to his abdomen and a 5-year-old girl from Dimona struck by flying glass when the blast wave from an impact 400 meters away blew in her family's windows [1].

This paper reported Saturday that the strikes represented the first mass casualty event on Israeli soil from Iranian missiles. The picture that has emerged since is worse — not only because the casualty count has risen, but because the IDF has confirmed what open-source analysts suspected within minutes: the Arrow 3 exo-atmospheric interceptor, the crown jewel of Israel's missile defense, was not fired [1].

What Hit and What Missed

The IDF described Saturday's barrage as "approximately 30 ballistic missiles" from Iranian territory. Of these, "the majority were intercepted by Arrow 2 and David's Sling systems." The statement did not specify how many penetrated. "Majority" means at least two did not [2].

Open-source video analysis by OSINT analyst Ben Reuter, corroborated by Planet Labs satellite imagery, identified at least five impacts in the Arad-Dimona corridor: two in residential neighborhoods of Arad, one in an industrial zone, one in open ground approximately three kilometers north of the Dimona nuclear complex, and one inside the perimeter of a military installation whose function the IDF has never publicly acknowledged [2].

The impact near Dimona's nuclear facility — the one Israel has never officially confirmed possesses nuclear weapons — generated a seismic signature consistent with a 500-kilogram class warhead [1].

Where Was Arrow 3?

Arrow 3 intercepts ballistic missiles outside the atmosphere at altitudes above 100 kilometers, developed jointly with the United States at a cost exceeding $3 billion. It was used successfully during Iran's October 2024 barrage. On Saturday, it was absent [2].

Two competing theories have emerged. The first is conservation: each Arrow 3 interceptor costs $2-3 million, and Israel's stockpile is finite. After 23 days of war and dozens of Iranian barrages, the IDF may be rationing its highest-tier rounds for the threats that matter most: a mass salvo targeting Tel Aviv or a strike aimed directly at Dimona's reactor. Saturday's barrage, targeting the Dimona periphery rather than the reactor itself, fell below the threshold. This is rational triage. It is also an admission that Israel cannot defend all of its territory all of the time.

The second theory is less charitable. Reuter posted Hebrew media reports that the U.S.-supplied THAAD system — deployed to Israel in late 2024 and operated by American crews — "missed the same class of missile across Arad, Dimona, and earlier at Beit Shemesh." If THAAD missed and Arrow 3 was not fired, Israel's two exo-atmospheric defense layers were both ineffective against Saturday's barrage. The implications of that are severe: it would mean that a determined Iranian salvo of sufficient size can penetrate Israel's defenses and reach population centers [2].

The Interceptor Arithmetic

Even the conservation theory points to a deeper crisis. Analysts estimate Israel entered the war with approximately 100-150 Arrow 2 interceptors, a smaller number of Arrow 3 rounds, and roughly 1,000-1,500 David's Sling interceptors. In 23 days, Iran has fired hundreds of ballistic missiles. Each interception requires one to two interceptors. The math is relentless [1].

Iran's missile production capacity — dispersed across hardened underground facilities, many of them in the mountainous western provinces — is estimated at 50 to 100 ballistic missiles per month. Israel's interceptor production, even with emergency American assistance, cannot match that rate. This is the attritional logic that keeps Israeli defense planners awake: every missile Iran fires costs perhaps $500,000. Every interceptor Israel fires costs $2-3 million. The exchange ratio favors the attacker six to one [1].

This is why Defense Ministry Director General Amir Baram flew to Washington on Sunday to request emergency resupply. The request was described as "urgent" [2].

Netanyahu, in a televised address Saturday night, called the low casualty count "a miracle." Miracles are not strategies. A defense doctrine that relies on missiles landing in open fields rather than on apartment buildings is not a defense doctrine. It is luck, and luck is a depreciating asset.

The 12-year-old boy in Arad was playing in his courtyard when shrapnel hit him. The 5-year-old in Dimona was inside her apartment when the windows exploded. Netanyahu called it a miracle. Their parents are calling it something else.

-- YOSEF STERN, Jerusalem