As the "Iran War" enters its ninth day, the issue of precision-guided munitions stockpiles is gradually coming to the surface... The U.S. military's reserves of long-range stand-off attack weapons, such as the AGM-158 JASSM cruise missile, stockpiled to address a potential Taiwan Strait crisis, currently number just over 4,000, and in this military operation against Iran, 10% to 15% of this strategic reserve has already been consumed—roughly equivalent to the U.S. military's total annual production capacity for such munitions.Due to limited stockpiles and slow replenishment, the U.S. military has been using these high-end munitions in a "careful and calculated" manner. Additionally, with some tactical aircraft still relying on the shorter-range JDAM Joint Direct Attack Munition, fighters have had to approach targets more closely, not only increasing risks of short loiter times and difficulty covering targets, but also reducing overall strike efficiency.To ensure fighter safety, the U.S. and Israel have been launching from distant bases. Israeli pilots are averaging three sorties per day, flying 10,000 kilometers, spending 13-14 hours a day in the cockpit, relying solely on drug use to stay alert, yet managing to drop just 2 bombs per sortie for a total of 6 per day. In contrast, during the Gaza war, Israeli fighters could fly 5-6 sorties daily, and in extreme cases, drop 7-8 bombs per sortie.The Israeli Defense Forces' stockpile situation is even more dire. The IDF's inventory of even standard JDAM guided bombs has already bottomed out, and in recent airstrikes on Iranian residential areas, it has even been reported that they were forced to use unguided iron bombs—a weapon that not only drastically reduces the probability of destroying point targets in modern urban combat but also carries enormous risks of collateral casualties. At the same time, the IDF must also contend with ongoing Hezbollah harassment in southern Lebanon and widespread targets inside Iran, with munitions demands growing exponentially. To address this urgent crisis, the U.S. Department of Defense is urgently allocating 12,000 munitions to Israel to replenish its near-depleted stockpiles.In the realm of low-altitude kill chains, the U.S.-Israeli coalition forces are similarly facing stubborn resistance. A large number of armed reconnaissance drones have been shot down over Iran, and combined with stockpile limitations on precision-guided weapons, the coalition's speed in destroying Iran's mobile launchers falls far short of the levels seen in the previous Twelve-Day War, directly resulting in Iran retaining a considerable asymmetric counterstrike capability.Faced with the dual pressures of ineffective ground target clearance and munitions stockpiles, the U.S. military has been forced into a strategic adjustment, deploying a third carrier strike group to the theater and preparing to deploy strategic bombers. Although the B-1B Lancer has participated in airstrikes, due to fears of Iran's unknown but dense air defense network, these bombers dare not penetrate deep into its airspace and can only launch AGM-158 JASSM cruise missiles from stand-off ranges. However, with stand-off weapon stockpiles inherently limited, this "high-cost, low-penetration" mode of operations offers little in the way of meaningful changes to the battlefield situation. The conflict between the finite stockpiles of high-tech weaponry and the infinite demands of high-intensity attrition warfare is increasingly becoming the key constraint on the war's progress.