U.S. Defense Secretary Pete Hegseth announced a six-month Pentagon review of American forces in Europe during a NATO meeting in Brussels on Thursday, June 18, 2026. Hegseth signaled a potential reduction in U.S. financial and military support, demanding that European allies accelerate their transition toward self-reliance for regional defense.
Hegseth’s Review and the Shift Toward European Responsibility
The Pentagon’s upcoming six-month audit of its European force posture is intended to determine the necessity of current U.S. military presence on the continent. According to the Associated Press, the objective is to ensure that NATO moves “fast and irreversibly toward Europe leading, stepping up to take primary responsibility for the defense of Europe.”
This initiative follows a series of recent adjustments to U.S. military commitments. Since June 3, the U.S. has signaled it will no longer provide specific assets—including aircraft carriers, support ships, and fighter jets—in the event of a crisis. Secretary Hegseth framed the new review as a necessary evolution for a “NATO 3.0” architecture designed to allow the United States to plan for two simultaneous conflicts, specifically emphasizing the need for resources in the Indo-Pacific region to deter threats from China.
The Pentagon’s posture review process typically involves a top-down assessment of global commitments, balancing requirements in the European theater against the National Defense Strategy’s focus on the Indo-Pacific. Historically, the U.S. has maintained a permanent rotational presence in Europe—such as the European Deterrence Initiative—to bolster the alliance’s eastern flank. The current audit represents a departure from this established norm, signaling that the U.S. may prioritize the movement of assets to the Pacific, leaving European nations to fill potential security vacuums in their own backyard.
Financial Contingencies and the End of ‘Free-Riding’
The U.S. administration is linking its financial obligations to the alliance directly to the defense spending habits of its partners. As reported by The Guardian, Secretary Hegseth stated that American contributions to the NATO budget will be contingent on other nations meeting their established defense targets.
“Where other allies do not spend with urgency, our dues, contributions will go down. Nato will be a two-way street. America cannot care for or pay more for Europe’s defence than our allies do.”
Pete Hegseth, U.S. Defense Secretary, via The Guardian
There is a clear tension regarding the current state of European defense. While Hegseth characterized European policies as being distracted by “gender equity and climate change,” NATO Secretary-General Mark Rutte offered a different perspective on the alliance’s fiscal health. Rutte noted that allies spent $90 billion more on defense last year, representing a 20% increase over 2024. Despite this increase, Hegseth maintained that the “era of free-riding” is over.
This fiscal debate centers on the 2% of GDP target for defense spending, a guideline established by NATO members in 2006 and reaffirmed in 2014. While many nations have struggled to meet this benchmark, the recent surge in defense spending across Europe has been largely attributed to the ongoing war in Ukraine. Hegseth’s position reflects a long-standing U.S. policy critique—dating back several administrations—that European reliance on U.S. logistics, intelligence, and heavy lift capacity creates a structural imbalance within the alliance that is no longer sustainable given current U.S. fiscal priorities.
Tensions Over Operational Access and Nuclear Deterrence
Beyond fiscal disputes, the Pentagon expressed sharp frustration with European allies over operational access. Hegseth explicitly criticized partners for denying U.S. forces the ability to use European bases for potential operations against Iran, labeling the refusal “shameful.” He suggested that such denials put American service members at unnecessary risk.
The refusal of basing rights is a significant operational hurdle for the U.S. military, which relies on a global network of airfields and naval ports to project power. Under the Status of Forces Agreements (SOFA) that govern U.S. military presence abroad, the U.S. generally retains the right to use facilities for training and NATO-sanctioned missions. However, independent U.S. operations—particularly those involving regional conflicts in the Middle East—often require separate, host-nation approval, which can be withheld based on domestic political concerns in the host country.
Despite the rhetoric surrounding conventional forces, the alliance’s nuclear stance remains firm. During the same Thursday meeting, the Nuclear Planning Group issued its first statement in 19 years. The group reaffirmed that strategic nuclear forces remain the “supreme guarantee of Allied security” and committed to modernizing capabilities and strengthening nuclear planning capacity, according to reporting by Euronews. This move suggests that while the U.S. may be scaling back conventional support assets, it continues to view nuclear deterrence as a non-negotiable pillar of its European strategy.
Broader Security Context: Strikes on Moscow
The diplomatic friction in Brussels coincided with a significant escalation in the ongoing conflict in Ukraine. As NATO defense ministers gathered, Moscow faced a large-scale drone attack that targeted the city’s oil infrastructure. Moscow Mayor Sergei Sobyanin confirmed that several drones reached the local oil refinery, forcing the suspension of flights at city airports. This attack, which Ukrainian President Volodymyr Zelenskyy characterized as “a just response to Russian strikes,” serves as a backdrop to the NATO discussions, underscoring the urgency of the security challenges the alliance aims to address through its updated planning.
The strike on Moscow’s infrastructure highlights the changing nature of the conflict, as Ukraine increasingly utilizes long-range, domestically produced drones to target assets deep within Russian territory. For NATO, these developments complicate the “escalation management” policy that has guided the alliance’s involvement since 2022. As the conflict intensifies, the pressure on NATO to maintain a unified front—even while the U.S. reevaluates its own contributions—remains the central challenge for Secretary-General Rutte and his counterparts as they navigate the next six months of the Pentagon’s mandated review.
