Israeli defense officials are reassessing their assumptions about the damage inflicted on Iran during the 2026 war after observing a far faster military recovery than anticipated, according to information obtained by The Jerusalem Post.
The assessment involves both the Israel Defense Forces and Mossad, although the IDF has played the central role in evaluating the effectiveness of Israel’s strikes against Iran’s military and defense industries.
For months after the conflict, Israeli officials maintained that the campaign had severely disrupted Iran’s ability to rebuild its weapons systems.
That confidence is now being tempered by evidence that Tehran has found ways to restore key capabilities at surprising speed.
The change is particularly significant because it extends beyond isolated weapons programs.
Israeli assessments increasingly point to recovery across multiple areas, including Iran’s ballistic missile infrastructure.
Earlier Strikes Produced Similar Surprises
The latest development follows a pattern that has emerged during several rounds of confrontation with Iran.
In October 2024, Israel struck 20 major ballistic-missile and military-industrial targets.
At the time, the IDF assessed that the operation had delayed Iran’s future missile production by at least a year.
That assessment did not hold for long. By early 2025, Iranian missile production had returned to a pace that surprised Israeli planners.
The speed of the recovery contributed to Israel bringing forward preparations for another potential operation, eventually leading to the June 2025 campaign.
That operation was considerably larger. Roughly 100 missile and military-industrial targets were hit, prompting the IDF to argue that it had finally identified a way to impose a multiyear setback on Iran’s missile-production capacity.
A Much Larger 2026 Campaign
The 2026 war was conducted on a dramatically different scale.
During the roughly 40-day conflict, Israel and the United States together struck more than 2,600 missile and military-industrial targets and carried out approximately 30,000 attacks against Iranian targets.
The number of strikes was about 26 times higher than in 2025 and more than 100 times greater than in 2024.
Israeli officials subsequently described Iran’s military-industrial infrastructure as having been devastated.
The scale of the destruction led to an expectation that Tehran would struggle for years to restore its previous missile-production capacity.
Yet four months after the principal fighting ended in April, Israeli assessments are reportedly showing that Iran has once again found ways to accelerate reconstruction.
Missile Production Is the Central Concern
The ballistic missile question has become especially important because the size of Iran’s remaining arsenal may now be less significant than the speed at which Tehran can manufacture replacements.
After the June 2025 campaign, Israeli estimates put Iran’s missile inventory at roughly 1,300.
By February 2026, that figure had risen to approximately 2,500, demonstrating how quickly production could recover after earlier Israeli strikes.
During the 2026 war, Israel and the United States believed they had finally dealt a decisive blow to the production system.
Israeli officials estimated that the damage to Iran’s military infrastructure reached roughly $300 billion.
The emerging assessment challenges the assumption that Iran would remain constrained by whatever missiles survived the war.
Senior Iranian officials have indicated that new weapons production has resumed, and Israeli officials now acknowledge that Tehran has developed innovative methods for concentrating its resources on restoring strategically important capabilities even while large portions of the country remain damaged.
Underground Facilities Complicate the Picture
One example of Iran’s ability to recover involves its underground missile facilities.
The New York Times previously reported that Iranian forces used bulldozers to clear access routes to underground missile complexes more rapidly than Israel had anticipated.
Such efforts do not necessarily represent the reconstruction of destroyed weapons-production infrastructure.
In some cases, they restore access to missiles and equipment that survived the attacks but were effectively sealed off by debris or other blockages.
Nevertheless, the episode illustrates a broader problem confronting Israeli planners: damaging infrastructure does not necessarily eliminate the underlying military capability if Iran can find alternative methods of restoring access or redirecting resources.
The Recovery Rate May Matter More Than the Remaining Arsenal
Before the latest assessments emerged, Israeli officials and analysts debated whether Iran had roughly 500 or closer to 1,000 long-range missiles capable of reaching Israel after the war.
That question becomes less decisive if Tehran can rapidly replenish its stockpile.
If Iranian production eventually returns to somewhere between 100 and 300 ballistic missiles a month, Iran could potentially rebuild its arsenal to levels comparable to those seen in June 2025 by early or mid-2027.
At that rate, Israeli planners could once again face a major missile threat by 2028.
Even a slower recovery would raise concerns if production continues steadily over several years.
Israel May Face a Strategic Choice
The emerging picture could influence Israel’s decisions about whether another military operation against Iran becomes necessary, particularly as negotiations continue over the Strait of Hormuz and Tehran’s nuclear program.
Israeli policymakers may ultimately have to decide whether the renewed missile threat warrants another campaign or whether diplomatic efforts should focus primarily on preventing Iran from advancing its nuclear capabilities.
That calculation could also be affected by the position of US President Donald Trump, who has signaled that Iran’s ballistic missile program is not his primary concern compared with the nuclear issue.
IDF Says Assessments Continue to Evolve
The IDF has pushed back against any suggestion that the 2026 campaign failed to significantly damage Iran’s military capabilities.
In a statement responding to the report, the military said it had inflicted extensive damage on a broad range of key elements of Iran’s defense infrastructure, reducing both the regime’s ability to use some of its capabilities and its ability to restore them at the scale and speed available before the war.
The IDF added that it has continued monitoring Iranian efforts to repair and rebuild its military capabilities and that its assessments are updated as developments occur.
The military declined to provide specific estimates of Iran’s rehabilitation rate, saying that revealing such details could expose intelligence sources and methods.
For Israeli defense planners, however, the central lesson from the latest developments may be that destroying infrastructure is not necessarily equivalent to permanently eliminating a weapons capability.
Iran’s repeated ability to redirect resources, exploit surviving assets and rebuild critical systems has forced Israel to reconsider how long the effects of even an unprecedented military campaign will last.
