US Secretary of State Marco Rubio told reporters on Friday that President Trump had expressed strong disappointment over the lack of NATO involvement in the US-Iran war, a disclosure that threw a fresh spotlight on the widening fracture between Washington and its European allies over the conflict that has disrupted global oil markets since late February.
The statement came as Rubio travelled to India from Sweden, where he had attended a separate diplomatic engagement, and reflects a tension that has been building within the alliance since the war began without a formal NATO endorsement or collective security invocation.
European members of the alliance have been caught between their formal security obligations to the United States and deep domestic political opposition to the Iran conflict among their own populations, with no NATO member having committed forces to the operation.
The absence of NATO participation has been a recurring source of friction between Trump and European leaders, with the president having expressed frustration privately and in smaller meetings before Rubio’s Friday remarks represented the most explicit public acknowledgement of his displeasure.
France, Germany, and the United Kingdom have maintained varying levels of diplomatic engagement on the Iran nuclear question but have declined to join the military operations, citing both legal reservations about the conflict’s authorisation and political opposition at home.
The Iran war has also exposed deeper disagreements about burden-sharing within NATO that predate the current conflict, with Trump having spent much of his second term pressuring European members to increase their defence spending and reduce their dependence on US security guarantees.
House Republican leaders separately pulled an Iran war powers vote this week after attendance issues among members raised doubts about whether they could secure the votes needed, reflecting ongoing domestic political complications around the conflict’s legal basis in addition to the allied tensions.
Iran’s Foreign Minister Abbas Araghchi warned this week that Tehran was preparing additional surprises if the war resumes following any breakdown in ceasefire negotiations, a statement interpreted by analysts as a signal that Iran retains undisclosed military capabilities it has not yet deployed.
European governments have been monitoring the Iran ceasefire negotiations with considerable interest, as a successful agreement that reopens the Strait of Hormuz would provide significant relief to European economies that have been absorbing the secondary effects of elevated energy prices caused by the Hormuz closure.
Analysts said Rubio’s decision to publicly name NATO as a source of presidential frustration immediately before arriving in India signals a deliberate strategic choice to deepen the US-India partnership as a counterweight to the alliance relationships in Europe that the administration views as insufficiently reliable.
