US President Donald Trump told European and Ukrainian leaders that the US is willing to contribute security guarantees for Ukraine — but only if NATO is not involved, according to Politico sources.
Politico reports that Trump’s comments came during a 13 August German-brokered virtual meeting aimed at aligning American and European positions before Trump’s 15 August summit with Russian President Vladimir Putin. The offer, while sparking cautious optimism, left many questions unanswered about its scope and strength.
Trump’s NATO-free security offer
According to Politico, three people familiar with the call — a European diplomat, a British official, and a person briefed on the conversation — said Trump indicated that Washington could play a role in helping Kyiv deter future Russian aggression if a ceasefire is reached. One person briefed on the call said the president made clear he would only agree to such a guarantee if it was not part of NATO. Trump did not define what the guarantees would entail, speaking only in broad terms.
A British official told Politico that Trump sees a US role in security guarantees as part of a final settlement. European officials, while encouraged that Trump appeared receptive to their calls for a deal, remain wary about the outcome of his talks with Putin.

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Limits on US involvement
Politico notes that Trump has stated any US guarantee will not include the direct provision of weapons or the deployment of American troops to Ukraine. Instead, his administration has allowed Europe to purchase American weapons for delivery to Kyiv. Officials say this policy has added pressure on Moscow and played a role in bringing Putin to the negotiating table. Even so, the scale of the guarantees is expected to fall short of what Kyiv and its backers want.
European governments have been exploring security arrangements without the US, including a coalition of willing ground forces to help uphold a future peace deal. However, they see American backing — even outside NATO — as essential to strengthening deterrence.
Concerns ahead of Putin meeting
Trump has long opposed lethal military assistance for Ukraine during his presidency. While some allies believe he has considered their advice in pursuit of a ceasefire, they fear what might happen once he meets Putin in person. The lack of detail about the guarantees and their enforcement leaves uncertainty over whether such a deal could prevent future Russian aggression.