Trump's Iran war sparks rare rift with top military leaders over what comes next

The warning came from Army, Navy, and Air Force chiefs and four-star commanders overseeing US operations in Europe, Asia, and Latin America
Military leaders told Defense Secretary Pete Hegseth that prolonged Iran operations were unsustainable and could weaken US forces against threats elsewhere (AP Photo/Manuel Balce Ceneta)
Military leaders told Defense Secretary Pete Hegseth that prolonged Iran operations were unsustainable and could weaken US forces against threats elsewhere (AP Photo/Manuel Balce Ceneta)

WASHINGTON, DC: While the months-long Iran war appears to be subsiding, differences over how to deal with Tehran are growing within the US military. Top US commanders have warned Defense Secretary Pete Hegseth against prolonging the war, saying it could weaken the country’s military resources and its ability to respond to other threats.

The Iran war, which began on February 28 with a joint attack by Washington and Tel Aviv on Tehran, has now prompted the US to switch to economic sanctions as a new strategy against the Islamic country.

Iran war can weaken US elsewhere

BRUSSELS, BELGIUM - FEBRUARY 13: U.S. Secretary of Defence Pete Hegseth holds his closing press conference at the end of defense ministers' meetings at NATO headquarters on February 13, 2025 in Brussels, Belgium. NATO Defence Ministers are convening in Brussels for a meeting chaired by NATO Secretary General Mark Rutte. Hegseth marked the first visit to NATO by a member of the new Trump administration. High on the agenda for the allies will be ascertaining how the U.S. intends to influence the trajectory of the war in Ukraine, as the conflict nears the third anniversary of Russia's full-scale invasion. (Photo by Omar Havana/Getty Images)
Secretary of Defence Pete Hegseth holds his closing press conference at the end of defense ministers' meetings at NATO headquarters on February 13, 2025, in Brussels, Belgium (Omar Havana/Getty Images)

Several military leaders have advised Hegseth that prolonging large-scale operations against Iran is unsustainable and risks weakening their ability to confront threats elsewhere, including the homeland, according to people familiar with a recent assessment prepared for the Pentagon chief, as told to The Washington Post.

According to the sources cited by the Washington Post, the warning was issued by the heads of the Army, Navy, and Air Force and the four-star commanders overseeing US operations throughout Europe, Asia, and Latin America.

Sources also added that the warning appeared in the August 14 edition of the Secretary of Defense Orders Book (SDOB).

Notably, the outlet kept the identities of the sources hidden because the discussed documents are confidential.

Military leaders voiced concerns after administration extended deployment

SEOUL, SOUTH KOREA - NOVEMBER 04: U.S. Defense Secretary Pete Hegseth speaks during a joint press conference with South Korean Defense Minister Ahn Gyu-back, following the 57th Security Consultative Meeting at the Defense Ministry on November 04, 2025 in Seoul, South Korea. The defense chiefs of South Korea and the United States were set to hold their annual security talks in Seoul to discuss a range of security issues, such as how to modernize the decadeslong alliance between the two nations. (Photo by Lee Jin-man - Pool/Getty Images)
Defense Secretary Pete Hegseth speaks during a joint press conference with South Korean Defense Minister Ahn Gyu-back, following the 57th Security Consultative Meeting at the Defense Ministry on November 4, 2025, in Seoul, South Korea (Lee Jin-man - Pool/Getty Images)

The military leaders raised concerns about prolonging the war after the August 14 orders book directed some troops deployed in the Middle East to remain there through September, while others could stay until 2027.

The leaders of the US European Command, the US Pacific Command, and the US Southern Command, along with the Navy's top admiral, disagreed with the order but will execute the deployment extension order nevertheless.

The source familiar with the assessment of the document described how top leaders responded with what is characterized in the SDOB as a "non-concur.”

A firefighter hoses down smoldering rubble as a bulldozer clears debris at a residential building hit in an earlier US-Israeli strike in Tehran, Iran, Monday, March 23, 2026. (AP Photo/Vahid Salemi)
A firefighter hoses down smoldering rubble as a bulldozer clears debris at a residential building hit in an earlier US-Israeli strike in Tehran, Iran, Monday, March 23, 2026 (AP Photo/Vahid Salemi)

The geographic combatant commands overseeing US operations in Europe, Asia, and Latin America have had their ships, aircraft, and other equipment pulled away to support the Iran conflict.

The effort has affected their ability to conduct missions and ensure proper training, those familiar with the assessment said. The Navy, in particular, has had to stretch its capacity to keep up with wartime demands.

Extended Iran war could threaten homeland security

The House of Representatives passed a resolution that automatically enrolls young men aged between 18 and 26 for selective service in the US Army (Getty Images)
The sources said that the military leadership thinks that the Iran war has been 'too much for too long' (Getty Images)

The Army and Air Force leadership agreed to follow Hegseth’s direction to extend the deployment of their forces, but each emphasized that doing so would come with significant risk, sources revealed.

The sources said that the military leadership is of an opinion that the Iran war has been "too much for too long.”

While the military warning to Hegseth was issued earlier, it was not reported because the documents are confidential.

"Decisions regarding the scope and duration of specific force commitments to any Combatant Command are made based on the current threat assessment, strategic priorities established by the President, and the advice of the Chairman of the Joint Chiefs of Staff and Combatant Commanders," Sean Parnell, a spokesman for Hegseth, said in a statement to The Washington Post.

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