America’s Long-Range Missiles Are Running Out – Why Is That? – What It Means

The most consequential fact to emerge from open-source reporting on the Iran war is not any single strike or ceasefire collapse, but a quieter one: the United States has burned through irreplaceable munitions at a pace that has alarmed its own defense planners. Roughly half the global Tomahawk inventory, virtually the entire ATACMS and PrSM stockpile, and more than a thousand JASSM-ERs in the first month alone — weapons that take three to four years to rebuild — have gone into Iran. The US has not lacked other ways to strike Iranian targets; it has chosen, consistently, to fire expensive standoff weapons from beyond Iran’s air-defense envelope rather than fly aircraft closer and use cheaper direct-attack munitions. That choice is the main reason the stockpile has collapsed so fast, and it is not accidental — it is the output of a risk calculation Iran has forced onto American commanders.

Iran’s “mosaic” air-defense doctrine — dozens of dispersed, semi-autonomous, mobile IRGC-controlled units rather than one hardened, targetable belt — has made full suppression impractical within the war’s timeline. The consequences of testing that defense at closer range have already shown up in the casualty list: the April 3 downing of a US F-15E over southwestern Iran, and reported instances of Iranian systems achieving a radar lock on an F-35A, undercutting the assumption that stealth alone guarantees safe penetration. Both incidents point to Chinese technical support — a possible Chinese MANPADS in the F-15E’s case, a Chinese-supplied long-range radar reportedly able to track low-observable aircraft in the other. Meanwhile the E-3 Sentry AWACS fleet meant to give American aircraft the warning to close the distance safely entered the war already reduced from 34 aircraft to roughly 16 operational, and lost one of six deployed to Prince Sultan Air Base in a single Iranian strike in March; its replacement, the E-7 Wedgetail, has only seven aircraft on order against a stated requirement of 26. The sensor advantage that might justify flying closer simply isn’t there in sufficient depth.

Israel’s campaign is the clearest evidence the American approach is a choice, not a necessity. Where the US has stayed largely outside Iran’s engagement envelope, the Israeli Air Force has flown deep and repeatedly: roughly 1,500 F-35I Adir sorties, strike packages of 200-plus jets, direct suppression of high-threat air-defense nodes, decapitation strikes on IRGC command targets, and a claimed air-to-air kill of a manned Iranian fighter. Israel achieved this by accepting materially more exposure — its aircraft, not standoff munitions, absorb the risk — and arguably degraded Iran’s command and air-defense network faster than a standoff-heavy campaign can. The country with the smaller air force and shorter, more exposed flight paths has flown the riskier profile; the country with the far larger stockpile of exquisite munitions has spent that stockpile specifically to avoid it.

This dynamic is very likely shaping how American leaders think about what comes next. Every “take the gloves off” option — expanding strikes against Iran’s oil infrastructure and remaining missile sites, an idea raised repeatedly in recent debate — runs into the same fork: more standoff missiles, deepening a depletion crisis planners worry leaves the US under-armed for a future confrontation with China or Russia; or aircraft flying closer, accepting materially higher risk of further F-15E- or F-35-style losses and captured aircrew. Neither is attractive, which helps explain why theater airpower utilization has stayed well below its theoretical maximum even as pressure to escalate grows, and why Washington has leaned harder on economic and maritime tools — the Hormuz blockade, shadow-fleet sanctions, the Oman shipping-corridor talks — to keep squeezing Iran without further draining an air campaign already running low on its most irreplaceable weapons.

The Israeli comparison sharpens this into a harder question: is the standoff-heavy US posture sound risk management given the scale of America’s commitment, or substantially a function of casualty aversion — a reluctance to accept the aircrew losses Israel has been willing to risk — dressed up as munitions conservation? Probably both. Losing American pilots over Iran, especially as prisoners on state television, carries a domestic political cost that a war of choice is acutely sensitive to, one that arguably outweighs the strategic cost of burning through stocks that can eventually be rebuilt. Iran’s cost-imposition strategy seems designed to exploit exactly that asymmetry: Tehran doesn’t need to defeat American airpower, only to make penetrating strikes visibly costly enough — one downed F-15E, one contested F-35 radar lock, each amplified in state media — to keep Washington locked into the casualty-averse standoff model. If so, Iran is achieving a strategic effect disproportionate to its battlefield performance, using the credible threat of American losses to accelerate a munitions crisis that constrains US options elsewhere.

That is the choice facing American planners: adopt a more aggressive, Israeli-style posture that accepts higher near-term aircrew risk for faster degradation of Iran’s defenses and a slower drain on the missile inventory, or keep prioritizing casualty avoidance while consuming an irreplaceable stockpile at a rate the Pentagon itself calls unsustainable. Neither is cost-free, and that dilemma, more than any single battlefield event, may be what ultimately pushes Washington toward negotiated off-ramps rather than further escalation.