US Military Leaders Warn Extended Iran Operations Unsustainable
The Washington Post reports that several senior U.S. military leaders warned Defense Secretary Pete Hegseth that extending large-scale military operations against Iran is difficult to sustain and could weaken U.S. response capabilities in other regions.
The warning is included in the Defense Secretary's Order Book dated August 14, a confidential internal document typically compiled twice a month to outline the availability status of U.S. military vessels, aircraft, personnel, and weapon systems globally, and to inform troop deployment decisions.
According to sources familiar with the assessments, the U.S. Central Command has maintained over 50,000 troops on heightened alert for months to respond to potential further actions ordered by the president. The latest orders require some troops in the Middle East to remain until September, while others will be deployed until 2027.
Commanders from U.S. European Command, Indo-Pacific Command, and Southern Command, along with the Chief of Naval Operations, expressed "non-concur" opinions regarding the extension of their forces' deployments, meaning they formally disagree with the orders but will still execute them. The Army and Air Force leadership agreed to extend deployments but warned that this move carries significant risks.
Assessments indicate that the redeployment of vessels, surveillance aircraft, and other capabilities to Central Command has put pressure on training, deterrence, and homeland defense capabilities in Europe, Asia, and Latin America. Chief of Naval Operations Admiral Daryl Caudle stated in the document that without a clear end date, the Navy cannot maintain its current operational tempo; the deployable destroyer ratio is only about a quarter of the fleet.
The report also noted that approximately 2,000 soldiers from the 82nd Airborne Division were urgently deployed to the Middle East in March and are expected to remain at least until September, with the possibility of further extensions. Some Air Force units conducting bombing and around-the-clock operations are expected to remain until 2027. Pentagon spokesperson Sean Parnell declined to discuss the order book and specific internal dissent, stating only that troop commitments are determined by current threat assessments, presidential strategic priorities, recommendations from the Chairman of the Joint Chiefs of Staff, and theater commanders.
From a market perspective, extending deployments in the Middle East will continue to lock in demand for military spending, interceptor missiles, precision-guided munitions, fuel, vessel maintenance, aviation maintenance, and contractor services at Central Command. The missile defense, ammunition, shipbuilding, military aviation maintenance, and intelligence surveillance sectors of the defense industry will benefit. Conversely, the available vessels and training resources for Indo-Pacific, European, and Southern Commands are being drawn down, putting pressure on regional deterrence budgets and readiness capabilities. If operations against Iran continue to extend, risks related to shipping in the Strait of Hormuz, oil price risk premiums, war risk costs, and concerns over the U.S. fiscal deficit will continue to be event-driven variables.
Source: Public Information
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The historical context of this controversy is that the U.S. has long faced constraints on its ability to maintain high-intensity deployments across multiple theaters due to vessel maintenance cycles, ammunition stocks, personnel fatigue, and industrial replenishment rates. The prolonged wars in Afghanistan and Iraq after 2001 led to repeated rotations and equipment wear, which squeezed training and readiness in other regions; after the 2010s, the U.S. strategic focus shifted to the Indo-Pacific, but sudden conflicts in the Middle East have repeatedly drawn back aircraft carriers, destroyers, air defense systems, and intelligence assets. The formal "non-concur" from the European, Indo-Pacific, Southern Commands, and the Chief of Naval Operations is notable not for the military's expression of risk, but for the written opposition from a cross-theater command structure to the continued drawdown of resources.
The resource allocation path has expanded from troop numbers to high-consumption, hard-to-replace equipment and interceptor stocks. Central Command's maintenance of over 50,000 troops on alert requires continuous occupation of surface vessels, fighter jets, early warning reconnaissance platforms, supply capabilities, and air defense systems; the 2,000 soldiers from the 82nd Airborne Division can be seen as a rapid response reserve locked in one theater. If deployments extend to 2027, the costs will not only be personnel allowances and fuel but also the inability of vessels to return for maintenance cycles, premature consumption of pilot flight hours, disruption of training plans, and forced acceleration of rear inventory replenishment. For defense contractors, such long-term consumption will convert one-time military sales or stock orders into years of replenishment, maintenance, and logistics contracts.
In comparison, the Russia-Ukraine war has demonstrated how sustained high-intensity conflict can quickly expose constraints in artillery, air defense missiles, and industrial capacity; Red Sea escort operations have also forced the U.S. and allies to long-term allocate destroyers and air defense interceptors. The difference in the Iranian theater is that the demand for forces simultaneously covers long-range strikes, shipping security in the Persian Gulf, missile interception, troop protection, and regional deterrence, which cannot be replaced by a single weapon system. The current phase is not simply about "increasing troops" but about the continuous occupation of theater resources: deployment orders extend some forces until September and others until 2027, while the report indicates that the ratio of deployable destroyers in the fleet is only about 25%, significantly increasing the marginal costs of continued operations.
Essentially, this is a restructuring of the supply chain: the bottleneck of modern warfare is shifting from readily mobilizable personnel to sustainably supplied interceptors, precision-guided munitions, vessel maintenance capabilities, sensors, aircraft engine repairs, and ammunition production lines. Prolonged front-line operations will cause inventory consumption rates to exceed peacetime procurement rhythms, forcing the government to reallocate budgets, production capacities, and supplier priorities to high-consumption systems; when resources are concentrated in one theater, other theaters bear the opportunity costs rather than zero costs. The generals' opposition to extending deployments does not deny the execution of orders but points out that the lack of a clear end date will cause limited global readiness assets to lose redeployment flexibility amid continuous consumption.