President Donald Trump greets Britain's Prime Minister Keir Starmer during summit to support ending the more than two-year Israel-Hamas war in Gaza after a breakthrough ceasefire deal, Monday, Oct. 13, 2025.

Donald Trump has sent Keir Starmer a clear message about the limits of the UK’s influence over the US after doubling down on his Greenland threat.

The US president has insisted America “needs” the Danish territory for defence in recent days, even though seizing it would involve aggressive action against a fellow Nato state.

That would be a major breach of the defence alliance’s article 5, which states an attack on one member state is an attack on all.

Fears that Trump might act on his claims have come into sharp focus after the US launched military action against Venezuela over the weekend and deposed its president Nicolas Maduro.

While European allies – including the UK, which is meant to have a “special relationship” with the States – signed a

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