At 2: 17 a. m. ET, the room is quiet except for the low hum of screens and the scratch of pen on paper. A duty officer reads out tallies of missiles and drones launched, then pauses—there are fewer than before. In this war, estoques are not a slogan or a political talking point; they are the difference between a surge that can be repeated and a surge that can’t.
What do low estoques mean for how long this war can last?
Weapon stocks and supply flows alone will not decide the outcome, but they have become a significant factor as operations run at an intense pace from the outset. Both sides are consuming weapons more quickly than they can produce them. That mismatch—high usage, slower replacement—tends to make the same level of combat harder to sustain the longer the war continues.
The Institute for National Security Studies, based in Tel Aviv, estimates that the United States and Israel have carried out more than 2, 000 strikes, each involving multiple munitions. The same institute says Iran has launched 571 missiles and 1, 391 drones, with many believed to have been intercepted. Numbers like these are not just indicators of intensity; they are a running ledger of depletion.
Why are missile and drone launch numbers falling?
Western officials say they have observed a decline in the number of missiles fired by Iran—from hundreds on the first day of the war to a few dozen now. U. S. Chairman of the Joint Chiefs of Staff General Dan Caine said on Wednesday (4/3) that Iranian ballistic missile launches fell 86% compared with the first day of fighting on Saturday (28/2). U. S. Central Command (Centcom) says there was a 23% reduction in the past 24 hours alone.
Caine also said Iranian drone launches fell 73% from the first day of the conflict. Iran is believed to have mass-produced tens of thousands of Shahed one-way attack drones before the war. The country exported the technology to Russia, which has used its own version in Ukraine. Even the United States copied the equipment’s design. Still, the current trend suggests Iran is struggling to maintain a high operational tempo.
There is another possibility that cannot be ruled out: the sharp drop could reflect a decision to preserve estoques. Yet even conservation has limits when the ability to keep producing becomes more difficult under sustained pressure.
How do air superiority and targeting change the stockpile equation?
The United States and Israel now have air superiority over Iran. Much of Iran’s air defense has been destroyed, and the country no longer has an air force considered credible. Centcom says the next phase of the war is focused on locating Iran’s missile and drone launchers, its weapon stocks, and destroying the factories that produce them.
In practical terms, this approach aims to reduce Iran’s ability to replenish what it uses. If factories are damaged and launchers are found, sustaining a long campaign becomes harder—not only because fewer weapons are available in storage, but because the pipeline that replaces them is disrupted.
Yet the same facts point to a stubborn limit. Centcom’s focus may facilitate reductions in Iran’s military capacity, but it will still be difficult to destroy all weapon stocks. Iran is three times larger than France, and weapons can be hidden and remain outside the reach of aerial observation.
What do officials and institutions say—and what remains unknowable?
Public claims and institutional assessments are colliding in real time. U. S. President Donald Trump has said the country has an “almost unlimited stock” of essential weapons. Iran’s Ministry of Defense says it has the “capacity to resist the enemy” for longer than the United States planned. Each message is meant to project staying power, yet neither side publishes exact numbers of weapons on hand; militaries keep such figures confidential to prevent adversaries from gaining access to them.
The partial visibility—launch counts, strike estimates, observed reductions—creates a peculiar tension for those tracking the war’s durability. The visible numbers suggest strain; the hidden numbers prevent certainty. The war can be measured by what is fired, but not fully by what remains.
What responses are underway, and what question hangs over the next phase?
On the operational side, the stated response is a shift in targeting: hunting launchers, stockpiles, and production sites. The logic is straightforward—reduce today’s launches and limit tomorrow’s replenishment. On the political side, both governments are asserting endurance: one through claims of near-limitless supply, the other through declarations of long resistance.
History, though, warns against assuming air power alone ends a conflict quickly. Israel’s armed forces have not destroyed Hamas in Gaza after more than three years of intensive bombardment, and Houthi rebels in Yemen have also endured an air offensive. Those examples underscore why the opening scene—the quiet room, the reduced tallies—matters: a long war becomes a contest not only of firepower, but of endurance, concealment, and production under attack.
Near dawn, the duty officer’s notes are folded and placed into a file. The figures are smaller than they were, but the meaning is unsettled: is it shortage, strategy, or both? The next phase will test whether targeting can truly narrow what remains hidden—and whether estoques can keep up with a war that began at full speed.
