US Military Leaders Warn Hegseth Iran Operations Are Unsustainable

Senior U.S. military leaders have warned Defense Secretary Pete Hegseth that prolonging large-scale military operations against Iran is unsustainable and risks weakening America’s ability to confront threats in Europe, the Indo-Pacific, and the homeland, according to documents and reports from The Washington Post and The Defense News.

The pushback from top commanders emerged in the August 14 Secretary of Defense Orders Book, a classified Pentagon document detailing the worldwide availability of warships, aircraft, personnel, and weapons systems. According to people familiar with the assessment who spoke to The Washington Post on condition of anonymity, the six-month campaign—which began in late February—has placed strain on U.S. armed forces deployed across the Middle East, where more than 50,000 troops remain on alert.

Commanders Object to Extended Deployments

The operational friction inside the Department of Defense deepened when the commanders of U.S. European Command, U.S. Pacific Command, and U.S. Southern Command, alongside the Navy’s top admiral, formally recorded a non-concurrence with military orders extending force levels for the Iran campaign. While a non-concur designation means these commanders disagreed with the extensions, they are still obligated to execute the orders. Meanwhile, Army and Air Force leadership concurred with the extensions while explicitly warning Hegseth that maintaining the current operational tempo carries significant strategic risk.

Military officials characterized the ongoing mission as “too much for too long”, noting the persistent absence of a definitive end date and the continuous redirection of vital assets away from other regional commands. The August 14 orders keep select military units stationed in the region through September, with others extended into 2027.

Navy Reports Strain and Depleted Fleet Readiness

Chief of Naval Operations Adm. Daryl Caudle advised Defense Secretary Hegseth that the Navy cannot sustain its current level of support indefinitely, reporting that only about one-quarter of the Navy’s destroyers are currently ready to deploy, according to The Defense News. The maritime branch has supplied dozens of vessels for initial strikes, defense against Iranian counterattacks, and a subsequent blockade of Iranian ports aimed at compelling Tehran to reopen the Strait of Hormuz.

The prolonged campaign has forced the Navy to extend ship and crew deployments by months, impacting routine maintenance schedules and diminishing fleet availability for potential conflicts elsewhere. Furthermore, Adm. Samuel Paparo, commander of U.S. Pacific Command, opposed requirements to continuously provide a carrier strike group and destroyers to the Middle East, noting that the sole U.S. aircraft carrier normally stationed in the Pacific was redirected to relieve a predecessor that had been deployed for over 300 days.

Regional Commands and Weapon Stockpiles Under Pressure

The ripple effects of the Middle East campaign have also impacted the U.S. European Command and U.S. Southern Command, which warned that shifting warships and surveillance aircraft to the U.S. Central Command has compromised their capacity to complete essential training and fulfill homeland-defense mandates. Ground and air units are similarly overextended; about 2,000 soldiers from the 82nd Airborne Division deployed in March have been ordered to remain through September, while Patriot air-defense batteries and Air Force units are slated to stay into 2027.

The protracted conflict has also drawn on critical U.S. military stockpiles, drawing down inventories of Patriot and THAAD interceptors alongside Tomahawk cruise missiles. Previous reporting indicated the U.S. military has lost approximately 25 percent of its Reaper drone fleet and sustained damage to regional bases, though the Trump administration has disputed characterizations of American munitions shortages as inaccurate.

In response to the growing operational concerns, Pentagon spokesman Sean Parnell stated that decisions regarding the scope and duration of U.S. force commitments are formulated using current threat assessments, presidential strategic priorities, and guidance from the chairman of the Joint Chiefs of Staff.