The United States military is currently engaged in a dual crisis: an active military campaign in the Gulf aimed at countering Iranian influence, and a contentious internal reorganization at the Pentagon led by Defense Secretary Pete Hegseth. These simultaneous pressures have sparked concern among lawmakers, former officials, and experts regarding whether the US fighting force is being overextended and if its global alliance networks are becoming vulnerable.
The turmoil intensified last week with the resignation of Dan Driscoll, the US Secretary of the Army. Driscoll had been a frequent point of conflict with Hegseth over the pace and nature of military reforms. His departure marks the latest in a series of high-profile exits among senior leadership, including the top uniformed officers of the Army, Navy, and Air Force, as well as dozens of generals and civilian defense officials.
Driscoll had advocated for urgent modernization, particularly the integration of drones into standard army formations to adapt to 21st-century warfare dynamics exposed by the conflict in Ukraine. Reports indicate that while Hegseth initially supported modernization, he subsequently clashed with Driscoll and other proponents, allegedly blocking progress by removing the generals responsible for driving these changes.
Critics argue that this leadership vacuum poses significant risks. Republican Senator Thom Tillis, a vocal critic of the President, called for Hegseth’s dismissal, citing “inept management” of the armed forces. H.R. McMaster, who served as National Security Adviser during Trump’s first term, told CBS that Driscoll’s removal was “not good news,” noting that the Army secretary had been championing a modernization agenda essential for keeping pace with contemporary threats.
Jon Duffy, a retired Navy captain and former White House defense policy official, stated that Hegseth has effectively “hollowed out” military leadership at a critical juncture. “You lose the [army] secretary, the chief of staff and other senior leaders driving modernisation, it creates a lot of uncertainty and it disrupts momentum,” Duffy said. “That uncertainty at leadership levels has downstream effects on the force.”
In contrast, Hegseth has publicly focused on cultural transformation within the military. He has moved to eliminate diversity programs, banned beards, and described efforts to restore what he terms “warrior spirit” after decades of “military misadventures.” Vice-President JD Vance defended the Secretary, expressing “strident agreement” with the need for cultural shift and praising Hegseth’s commitment to reviving the military’s offensive capability.
President Trump has consistently backed Hegseth, describing him as “one of my best” in recent interviews and expressing full confidence in the Department of War despite controversies, including the so-called Signalgate incident. The White House highlighted the success of operations such as Epic Fury, Absolute Resolve, and Midnight Hammer in response to growing criticism.
However, former Pentagon officials have drawn stark comparisons to authoritarian tactics. Michael Schiffer, a senior fellow at the Center for American Progress, compared the purges to those conducted by Chinese President Xi Jinping, warning that the arbitrary removal of leaders creates serious deficiencies in command structure and readiness without apparent mitigation strategies.
Beyond internal strife, the US military’s global posture is under strain due to the conflict with Iran. Following President Trump’s authorization of strikes on Iran in February, significant military assets and weapon stockpiles were redirected from Europe and the Pacific to the Gulf region. This redistribution has left European allies feeling exposed.
Professor Liana Fix of the Council on Foreign Relations noted that the lack of prior consultation with NATO partners exacerbated tensions and accelerated a strategic shift of US resources away from Europe. She warned that Russian President Vladimir Putin perceives these movements as signs of Western weakness, leading to an increase in hybrid attacks, including drone incidents and sabotage, against NATO countries like Germany.
Simultaneously, the focus on the Middle East has impacted the Indo-Pacific strategy, which the administration identifies as its primary national security priority. Carrier strike groups, including the USS Abraham Lincoln and the Japan-based USS George Washington, were diverted from the Pacific to the Gulf. The war has also severely depleted ammunition stocks; the US has fired approximately one-third of its Tomahawk cruise missile inventory and nearly 1,500 Patriot interceptors, according to the Center for Strategic and International Studies (CSIS).
Despite these logistical challenges, White House Principal Deputy Press Secretary Anna Kelly maintained that US military might remains robust, asserting that stockpiles are sufficient to meet all strategic goals. Ezra Cohen, a former Under Secretary of Defence, added that Iran’s conventional threat has been degraded and its proxy networks weakened, granting the President expanded options in the region.
Nevertheless, the human and material costs of a prolonged engagement are becoming more visible. Thousands of troops, including the 82nd Airborne Division, remain deployed in the Middle East with no clear end date in sight. Recent images of the USS Abraham Lincoln docking in Thailand with a rusting hull after nine months of intense operations were seized upon by Iranian state media as evidence of American fatigue. Hegseth rejected these claims, but the episode underscores the difficult balance the administration faces between waging a costly war and transforming the Pentagon’s institutional culture.
The Iran distraction seems to be hurting European alliances more than anything. Trump’s backing Hegseth despite the chaos, which is concerning.
Losing the Army Secretary over modernization delays is alarming. Who’s really driving readiness while internal politics take center stage?