Trump Says Leaving NATO Is "Beyond Reconsideration"

What Trump Said

In comments published Wednesday, April 1, 2026, in The Daily Telegraph, President Donald Trump described the North Atlantic Treaty Organization as a "paper tiger" and, when asked whether he would reconsider U.S. membership after the Iran conflict ends, said: "Oh yes, I would say [it's] beyond reconsideration."

He added: "I was never swayed by NATO. I always knew they were a paper tiger, and Putin knows that too, by the way," according to Reuters, which reported on the interview.

Trump also criticized individual allies directly. He told The Telegraph he expected NATO members to support the U.S. automatically when asked, saying: "Beyond not being there, it was actually hard to believe. And I didn't do a big sale. I just said, 'Hey', you know, I didn't insist too much. I just think it should be automatic," according to CNBC. He added: "We've been there automatically, including Ukraine. Ukraine wasn't our problem. It was a test, and we were there for them, and we would always have been there for them. They weren't there for us."

In a separate comment directed at the United Kingdom, Trump said: "You don't even have a navy. You're too old and had aircraft carriers that didn't work," according to CNBC, referring to Britain's fleet of warships.

Trump had previewed the hostility toward allies a day earlier, posting on Truth Social that France had been "VERY UNHELPFUL" and warning the U.K. and France that the U.S. "won't be there to help you anymore," according to CNBC.

Rubio Echoed the Threat — The Night Before

Secretary of State Marco Rubio had escalated the rhetoric hours before Trump's Telegraph interview was published. Speaking to Fox News, Rubio said the U.S. would need to "reexamine whether or not this alliance that has served this country well for a while is still serving that purpose or has now become a one-way street, where America is simply in a position to help Europe but when we need the help of our allies, they deny us basing rights and overflight," according to The Guardian.

Rubio told Bloomberg the alliance's alleged lack of support during the Iran conflict was "very disappointing" and that the U.S. "may need to reassess its relationship with NATO after the Iran war is finished."

Reuters separately reported Rubio as saying: "There's nothing any government is doing, or any country in the world is doing now to help Iran that is in any way impeding our mission," while reaffirming that the NATO review would come after the conflict.

The coordinated nature of both statements — the Secretary of State and the President making parallel threats within 24 hours — marks a significant escalation beyond previous rhetoric.

Why Europe Refused to Help

European NATO allies declined to send warships to help reopen the Strait of Hormuz and, in several cases, denied the U.S. and Israel overflight or basing rights for military operations against Iran. Spain and Italy have been specifically cited in prior reporting as blocking access to U.S. air bases on their territory.

As CNBC reported, European officials view the Iran war as a war of choice — one they were not consulted on before the U.S. and Israel launched strikes on February 28, 2026. European governments have expressed concern about being drawn into what could become a prolonged Middle East war, citing the precedent of Iraq and Afghanistan. Several European capitals have also argued, as CNBC noted, that NATO's foundational premise is collective defense — protection of member territory from attack — not collective obligation to join offensive wars initiated unilaterally by one member.

Wikipedia's article on the 2026 Iran war noted that in March 2026, Trump called NATO allies "cowards" for refusing his requests to help reopen Hormuz and described the alliance as "ineffective without the U.S."

What NATO Is — and What It Would Take to Leave

The North Atlantic Treaty Organization was founded on April 4, 1949, when 12 North American and Western European democracies signed the North Atlantic Treaty in Washington, D.C., according to the Belfer Center for Science and International Affairs at Harvard. Its current membership stands at 32 nations, according to NATO's official website.

Article 5 of the North Atlantic Treaty, the alliance's defining commitment, states that an armed attack against one member "shall be considered an attack against them all," according to NATO's own official documentation. The provision has been invoked formally only once in the alliance's history — after the September 11, 2001 attacks on the United States, when European allies came to America's aid.

A U.S. withdrawal from NATO faces a significant legal obstacle: Section 1250A of the National Defense Authorization Act for Fiscal Year 2024 (22 U.S.C. § 1928f) prevents the President from withdrawing the United States from NATO without either the advice and consent of two-thirds of the Senate or an act of Congress, according to Wikipedia's entry on the NDAA and the Congressional Research Service's analysis published February 27, 2026.

The constitutionality of that provision is contested. The Trump administration's Justice Department has taken the position, according to Reuters, that Congress cannot constrain the president's treaty withdrawal power. The question has not been definitively resolved by the Supreme Court.

Under NATO's own rules, any member that wants to leave must send a "notice of denunciation" to the United States (as the depositary state), which would then be passed to other allies. After a one-year waiting period, the withdrawing country would no longer be bound by the treaty, per Wikipedia's article on NATO withdrawal procedures.

Notably, as Wikipedia's Donald Trump biography noted, in January 2026 Trump appeared to step back from earlier withdrawal threats, stating he had reached "the framework of a future deal" with NATO — suggesting the current threats represent a reversal of that position, triggered specifically by the Iran war.

Historical Context: The Alliance Since 1949

NATO was created in response to the Soviet threat after World War II, under the premise — articulated by its first Secretary General Lord Ismay — that the alliance's purpose was to "keep the Soviet Union out, the Americans in, and the Germans down." The phrase is widely cited in NATO histories but the exact original source is debated by historians; its attribution to Ismay is accepted in mainstream scholarly literature.

The United States has been the alliance's principal military contributor for its entire 77-year history. According to NATO Secretary General Mark Rutte's 2025 annual report, as reported by Reuters, the U.S. accounted for approximately 60% of total NATO defense spending in 2025 — with total alliance spending reaching $838 billion that year. That figure is one the Trump administration and others cite as evidence of an imbalanced alliance. However, NATO's own data shows European members and Canada increased defense spending by 20% in real terms in 2025 compared to the prior year, according to Air Force Technology reporting on the Rutte report — the largest single-year rise recorded.

No U.S. president has previously taken formal steps toward withdrawing from NATO, nor stated in a published interview that departure was "beyond reconsideration." During Trump's first term (2017–2021), he threatened to withdraw if allies did not increase spending, but did not follow through. The current statement goes further in both directness and stated intent.

Why It Matters

Even short of formal withdrawal, Trump's comments carry real consequences. As Reuters reported the day before — citing a Pentagon statement — the U.S. declined to reaffirm NATO's collective defense commitment when asked, saying it was "up to Trump." Any signal that Washington might not honor Article 5 in the event of a Russian attack on a NATO member could severely weaken deterrence, even without formal withdrawal.

The immediate context — Trump's war with Iran, which European allies view as unauthorized and dangerous — creates a structural tension that will persist beyond any ceasefire. If the U.S. exits or functionally disengages from NATO, the 32-member alliance would face a fundamental question about whether it can survive as a meaningful military guarantee without American participation.

For Europe, the calculus is now explicit: either back U.S. military actions they did not consent to, or risk losing the security umbrella that has underpinned Western European stability for three-quarters of a century. Neither of Trump's stated positions — that NATO "should be automatic" — nor NATO's founding documents support the idea of collective obligation to join offensive wars. The disagreement is not merely political; it reflects a foundational difference in what the alliance is for.