Iran Is Repairing Bombed Missile Bunkers Within Hours — and Half Its Launchers Are Still Intact

Five weeks of US and Israeli airstrikes have struck over 11,000 declared targets in Iran. U.S. intelligence now says roughly half of Iran's missile launchers remain operational — and the ones that are bombed are being dug out and returned to service within hours. The war's central stated objective — destroying Iran's missile capability — is not being met.

What the Intelligence Actually Shows

The Pentagon declared "total air dominance" this week. President Trump said the war is "nearing completion." Defense Secretary Pete Hegseth has repeatedly cited the declining rate of Iranian missile launches as evidence that US and Israeli strikes are working.

The intelligence picture tells a more complicated story.

According to three sources familiar with US intelligence assessments, cited by CNN on April 3, approximately half of Iran's ballistic missile launchers remain intact after more than five weeks of daily US-Israeli bombardment. That figure includes launchers that may be buried underground, hidden in tunnels, or otherwise inaccessible — not just those visibly destroyed.

The New York Times separately reported, also on April 3, that Iranian operatives have been digging out underground missile bunkers and silos from the rubble and returning them to operation within hours of being struck, citing US intelligence reports.

The intelligence agencies have not estimated the number of remaining launchers with high confidence, according to American officials briefed on the assessments. But the core conclusion is clear: Iran retains the ability to use its remaining arsenal to attack Israel and other countries in the region.

Secretary of State Marco Rubio has cited "severe diminishing" of Iran's missile capability as one of the key war aims. As of April 4, that goal has not been achieved.

Why Bunkers Are So Hard to Destroy

Iran has spent decades building what the IRGC calls "missile cities" — vast subterranean networks buried hundreds of meters underground. Iranian state television has broadcast promotional footage of these facilities: long tunnels lined with ballistic missiles on mobile launchers, ready to roll to concealed exits and fire.

"Iran has been basing its resiliency on underground missile cities and tunnels and bunkers everywhere," said Federico Borsari, a non-resident fellow with the Transatlantic Defense and Security Program at the Center for European Policy Analysis. "It is quite possible that some Iranian air defense assets are still operational and hidden and concealed in many locations across the country."

According to a Wikipedia summary of open-source intelligence on Iranian underground missile bases, Israeli defense expert Tal Inbar — senior researcher at the Fisher Institute for Air and Space Strategic Studies — described one such facility as "a complex system of enormous tunnels" enabling Iran to "store and covertly fire surface-to-surface missiles" and conduct "a surprise barrage missile attack."

The US has used 2,000-pound bunker-buster bombs extensively in the war, including GBU-57 Massive Ordnance Penetrators (MOPs) delivered by B-2 stealth bombers. The Pentagon confirmed a bunker-buster strike on an Isfahan ammunition depot on April 1. But experts have long noted that Iran's deepest facilities may be beyond even the MOP's penetration capability.

The rapid repair phenomenon adds another layer of complexity. Unlike above-ground infrastructure — which stays destroyed until rebuilt — underground bunkers can be operational even when they appear visibly damaged from satellite imagery. Iranian crews reportedly dig out buried launcher tubes, clear debris from access tunnels, and restore firing capability within hours of a strike.

The F-15 Shootdown and What It Proves

On April 3, Iran shot down a US Air Force F-15E Strike Eagle over southern Iran — the first American warplane lost to hostile fire in the war. One crew member was rescued; a second remained missing as of Saturday morning, with US forces conducting an active combat search and rescue operation. An A-10 Thunderbolt II was also lost on the same day, according to the Washington Post, and two search-and-rescue helicopters were hit by Iranian fire before returning to base with injured crews.

The Times of Israel and military analysis outlets have reported the F-15E was likely shot down by Iran's 3rd Khordad surface-to-air missile system — a medium-range system roughly analogous to the Russian Buk-M2. The 3rd Khordad became internationally known in 2019 when it shot down a US RQ-4 Global Hawk surveillance drone. Its survival through five weeks of strikes confirms it remained hidden and operational.

The shootdown matters beyond the immediate loss of aircraft and crew. The Pentagon had claimed in the preceding days that Iranian air defenses were being systematically degraded. On April 1, Gen. Dan Caine confirmed that US B-52 bombers had begun flying overland missions inside Iran — a decision US military planners typically would not make unless they believed Iranian air defenses had been largely suppressed. The F-15 shootdown happened two days later.

The Intelligence-Policy Gap

The gap between what US officials say publicly and what intelligence agencies assess privately is significant and growing.

In March, Reuters reported — citing five US intelligence sources — that only about one-third of Iran's missiles had been confirmed destroyed at that time. That was before the most recent escalatory phase.

Now, in early April, CNN's sources say approximately half of Iran's missile launchers are intact — which, if the earlier Reuters figure was accurate, implies either that the campaign has made limited additional progress, or that Iran has replenished and reconstituted faster than strikes degraded it.

Hegseth's statement on Monday that "the last 24 hours saw the lowest number of enemy missiles and drones fired by Iran" is technically consistent with both stories: Iran is firing less because it is managing its reserves carefully, not necessarily because it cannot fire more. The New York Times noted Iran has "retained a significant amount of its missiles and mobile launchers" and is firing at reduced rates as a deliberate conservation strategy.

This distinction matters for war planning. If Iran is conserving rather than depleted, the trajectory of the conflict looks very different than if it is running out.

The Drone Arsenal Is Also Half-Intact

Beyond missiles, CNN's sources report that Iran also retains approximately half of its one-way attack drone arsenal — the Shahed-series loitering munitions that have been used to strike targets across the Gulf region throughout the war.

Iran has fired hundreds of drones at Israel, the UAE, Kuwait, and Saudi Arabia over the course of the conflict. Its drone manufacturing capacity has been partially targeted by US-Israeli strikes. But because drones are smaller, more dispersed, and easier to hide than ballistic missiles, degrading the drone arsenal has proven even harder than degrading missiles.

Russia, according to intelligence reporting, has also been providing Iran with upgraded Shahed variants — versions modified and improved during Russia's use of Iranian drones in Ukraine. Those upgraded drones have reportedly begun flowing back to Iran, partially offsetting attrition from US-Israeli strikes.

What This Means for the War's Stated Goals

Both the United States and Israel have articulated destroying Iran's nuclear and missile programs as the central objectives of Operation Epic Fury.

On the nuclear side, the IAEA Director General said in late March that US-Israeli strikes had not yet achieved the stated objective of eliminating Iran's nuclear capability. Iran's uranium stockpile and enrichment infrastructure remained partially intact, with the most sensitive facilities reportedly in underground locations that have not been fully neutralized.

On the missile side, the latest intelligence confirms the same pattern: persistent, partially intact capability despite sustained bombardment — and active reconstitution that partially negates each strike's effects.

Trump said this week the war will end "in two or three weeks." His administration's exit conditions include Hormuz reopening, missile disarmament, and a halt to nuclear enrichment. Iran's foreign ministry has publicly rejected every ceasefire proposal to date and issued a five-condition counterproposal that includes war reparations and Iranian sovereignty over Hormuz.

If the intelligence picture is accurate, the US faces a structural problem: it is striking targets that Iran can repair faster than they can be re-struck, from a hardened underground infrastructure that was specifically designed to survive exactly this kind of air campaign.

The Numbers at a Glance

• 11,000+ — Targets struck by US and Israeli forces in 36 days, per Pentagon briefing (April 1)
• ~50% — Estimated share of Iran's ballistic missile launchers still intact, per US intelligence (CNN, April 3)
• ~50% — Estimated share of Iran's one-way attack drones still intact, per same assessment
• Hours — Time it takes Iranian crews to dig out and restore bombed underground bunkers, per NYT intelligence report
• 3 — US aircraft lost on April 3 alone (F-15E, A-10, plus two damaged rescue helicopters)
• 1/3 — Share of Iranian missiles confirmed destroyed, per Reuters intelligence report from March (earlier estimate)

The Bottom Line

The intelligence assessment that roughly half of Iran's missile capability remains intact — and that bombed bunkers are being restored within hours — represents the sharpest documented gap between the administration's public narrative and the classified picture since the war began.

It does not mean the US campaign has failed. Degraded is different from intact, and firing at conservation rates is different from full capability. But it does mean the war's central stated objective — permanent, severe diminishment of Iran's missile program — is not within reach on the timeline Trump has described, using the methods currently being employed.

The underground missile infrastructure Iran built over 30 years was designed specifically to survive this scenario. So far, it is working as designed.