“COWARDS, and we will REMEMBER!”

With those five words on Truth Social on Friday, President Donald Trump reduced the most successful military alliance in modern history to a loyalty test — one that NATO allies never agreed to take.

The outburst came three weeks into the US-Israeli war against Iran, a conflict launched on February 28 without prior consultation with any NATO member. Trump called the 31-nation bloc a “paper tiger” and demanded allied warships help reopen the Strait of Hormuz, the narrow passage through which roughly a fifth of the world’s crude oil flows. Iran’s Islamic Revolutionary Guard Corps has effectively sealed it since the war began.

The Consultation That Never Happened

The diplomatic math here is straightforward, if uncomfortable for Washington.

German Chancellor spokesperson Stefan Kornelius delivered the sharpest rebuttal: “The U.S. and Israel did not consult us before the war, and Washington explicitly stated at the start of the war that European assistance was neither necessary nor desired.” Defense Minister Boris Pistorius was blunter still: “It’s not our war, we didn’t start it.”

This is not a minor procedural complaint. NATO’s Article 5 — the collective defense clause invoked exactly once, after September 11 — applies when a member is attacked. It does not oblige allies to join an offensive war they had no role in planning, no vote in authorizing, and no advance knowledge of. When Trump now insists that allies are “cowards” for declining to participate, he is asking them to retroactively endorse a unilateral decision they were explicitly cut out of.

The alliance already tested this boundary in early March, when an Iranian ballistic missile crossed into Turkish airspace and was intercepted by NATO air defenses. Even then — with a member state directly threatened — Secretary General Mark Rutte declined to invoke Article 5. “Nobody is talking about Article 5,” he said. U.S. Defense Secretary Pete Hegseth agreed.

If a missile over Turkey didn’t trigger collective defense, a presidential Truth Social post won’t either.

The Hormuz Stalemate

Trump’s frustration over the Strait of Hormuz is at least grounded in real economic pain. The closure has roiled energy markets worldwide. The European Central Bank has already cut its growth forecasts and raised inflation projections. Oil-dependent economies from Japan to South Korea are feeling the squeeze.

Seven allies — including Britain, France, Germany, Italy, and Japan — did issue a joint statement Thursday expressing “readiness to contribute to appropriate efforts” to ensure safe passage through the strait. But several attached firm conditions. Germany and Italy will not act until a ceasefire is reached. France’s Emmanuel Macron said he was exploring a multinational escort mission to “gradually” reopen the waterway, but only once the most intense fighting subsides. British Prime Minister Keir Starmer rejected the broader demand outright: the UK would work on reopening the strait but “will not be drawn into the wider war.”

Italy’s Deputy Prime Minister Matteo Salvini crystallized the allied position: sending military ships “would mean entering the war.”

Trump, meanwhile, characterized the operation as “a simple military maneuver” with “so little risk.” His allies disagree on both counts.

What ‘Paper Tiger’ Really Means

The “paper tiger” language is worth pausing on. It is not an insult thrown in frustration — it is a thesis about the alliance’s fundamental value. Trump is arguing that NATO without American muscle is nothing. That framing invites a logical follow-up: if the alliance is worthless without the United States, why does the United States need it at all?

Allied officials are clearly bracing for that conclusion. NATO has already withdrawn its non-combat mission from Iraq, with General Alexus Grynkewich confirming the relocation of all personnel to Europe. The alliance is contracting operationally at the very moment its political coherence is being questioned publicly by its largest member.

Three weeks into a war that has killed thousands and displaced more than four million people across Iran and Lebanon, the transatlantic alliance is not fracturing over strategy or burden-sharing — the usual NATO arguments. It is fracturing over something more basic: whether you can start a war alone and then shame your allies for not joining it.

The answer from Berlin, Paris, Rome, and London, stated with varying degrees of diplomatic polish, is no.

Sources