In a recent briefing, Secretary of War Pete Hegseth expressed concern over the reluctance of some traditional U.S. allies to fully endorse the United States’ military campaign against Iran. This hesitation, he argued, raises questions about NATO’s unity, particularly during this critical period of heightened tensions.

Hegseth’s remarks come amid Spain’s refusal to permit the use of its bases for U.S. airstrikes on Iran. The Spanish government has called for a de-escalation of the conflict and urged all parties to adhere to international law. Meanwhile, Turkey has voiced criticism of the military operations, cautioning that they could lead to wider regional instability. President Recep Tayyip Erdoğan expressed sorrow over the death of Iran’s Supreme Leader Ayatollah Ali Khamenei and denied any involvement of Turkish territory in the attacks.

In a statement issued on Saturday, French President Emmanuel Macron underscored the severe implications of the conflict between the United States, Israel, and Iran. “The outbreak of war carries grave consequences for international peace and security,” he warned, emphasizing the urgent need to halt the ongoing escalation.

During Monday’s media session, Hegseth contrasted Israel’s decisive cooperation with what he perceives as the hesitance of other allies. “Israel has clear missions,” he stated, “for which we are grateful. Capable partners are essential, unlike so many of our traditional allies, who seem paralyzed by indecision when it comes to the use of force.”

Accompanying President Donald Trump and Secretary Hegseth was General Dan Caine, Chairman of the Joint Chiefs of Staff, who addressed the press regarding U.S. military actions in Venezuela at a conference held at Mar-a-Lago in Palm Beach, Florida, on January 3, 2026. (Image credit: Jim WATSON / AFP via Getty Images)

The administration’s frustration appears to be growing, as the support from European allies remains largely rhetorical without substantial operational contributions, despite official statements of solidarity.

President Donald Trump also voiced dissatisfaction with allied hesitation. In an interview with The Daily Telegraph, Trump said he was “very disappointed” in British Prime Minister Keir Starmer for initially blocking U.S. use of British bases and that Starmer took “far too much time” to reverse course.

The United Kingdom later authorized U.S. use of key facilities, including Diego Garcia, after raising initial legal objections and following a drone strike on RAF Akrotiri in Cyprus.

NATO Secretary General Mark Rutte, U.S. President Donald Trump and Britain’s Prime Minister Keir Starmer pose with NATO country leaders for a family photo during the North Atlantic Treaty Organization (NATO) Heads of State and Government summit in The Hague, Netherlands, June 25, 2025.  (Ben Stansall/Pool via Reuters)

Justin Fulcher, former senior adviser to Hegseth, told Fox News Digital the moment represents “an absolutely critical inflection point where NATO should act in a unified way in support of what the United States is doing.”

He framed the issue as larger than the current campaign. “Symbolically, the U.S.-NATO alliance is critical when looking at actually restoring deterrence globally,” Fulcher said, arguing that visible unity would send a message not only to Tehran but to other geopolitical rivals watching how the alliance responds under pressure.

President Donald Trump, right, speaks with NATO Secretary General Mark Rutte during a group photo of NATO heads of state and government at the NATO summit in The Hague, Netherlands, Wednesday, June 25, 2025.  (AP Photo/Geert Vanden Wijngaert)

NATO Secretary General Mark Rutte has sought to downplay suggestions of division.

“I spoke with all the key European leaders over the weekend,” Rutte said on Fox News. “There is widespread support for what the president is doing.”

He added, “Europe is stepping up, is doing what is necessary to make sure this operation can go ahead and deliver all the enablement necessary.”

Germany has struck a more cautious tone. Chancellor Friedrich Merz warned in Sunday that strikes risk an Iraq- or Afghanistan-style quagmire and that Europe would bear the consequences.

At the same time, he said Berlin would not “lecture” the U.S. “We recognize the dilemma,” he said, explaining that repeated attempts over past decades had not put Iran off trying to acquire nuclear weapons or oppressing its own people. “So we’re not going to be lecturing our partners on their military strikes against Iran.”

“Despite all the doubts, we share many of their aims,” he said.

Smoke rises in Tehran following an explosion on March 2, 2026, amid ongoing U.S. and Israeli military strikes. (Majid Saeedi/Getty Images)

Fulcher contrasted the current hesitation with the strong reactions from some NATO capitals during past alliance disputes, including tensions surrounding Greenland.

“When you look at Greenland, that was obviously a very touchy subject for some countries in the Alliance,” Fulcher said. “Iran for decades has been a huge promoter and funder of terrorism all across the globe — attacks that have happened in Europe, in many NATO and European countries,” he said. “For me, it is quite shocking that we’re seeing a difficult time for many NATO members to fully unify and step up in support of the United States and what the U.S. and Israel is doing in Iran.”

He argued that Europe has a significant strategic incentive to see Iranian capabilities degraded.

“I think actually Europe and NATO have the most to gain from neutralizing the threat that emanates from Iran,” Fulcher said. “When you look at whether the ballistic missile threat or some of the state-sponsored terrorism threats, Europe has been on the receiving end of much more of these threats than the United States has in some cases.”

He stressed that support should extend beyond public endorsements.

NATO leaders pose in this shot taken in June. Military leaders are meeting in Washington Tuesday evening to discuss securities options for Ukraine. (REUTERS/Claudia Greco)

“Some of our European allies can do a lot more to not just support with words, which should be the bare minimum here, but also support with actual tangible action,” Fulcher concluded.

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