Starmer Warns EU: Trade War With Trump Would Hurt Britain Most

Summary: Sir Keir Starmer is urging the EU to avoid a tit-for-tat trade war after Donald Trump threatened fresh tariffs linked to Greenland. Starmer called the use of tariffs against allies “completely wrong”, while Brussels signals “restraint” and UK officials warn a wider US–EU tariff clash would still hit Britain’s economy.

Starmer’s message to Brussels: don’t escalate

Downing Street is pushing a simple line: don’t turn Trump’s Greenland tariffs into a full-blown transatlantic trade war.

Starmer’s public stance is unusually direct for a Prime Minister trying to keep Washington close on defence, intelligence and nuclear cooperation.

“That is why I say the use of tariffs against allies is completely wrong.”

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He framed the dispute as an alliance issue, warning that pressure tactics undermine trust inside Nato and make everyone poorer for no gain.

What Trump threatened and the dates that matter

Trump has tied tariffs to Greenland, threatening an additional 10% tariff on goods from the UK and seven European countries from 1 February 2026.

He has also signalled the tariff could rise to 25% from 1 June 2026 if no deal is reached.

Starmer has urged “calm discussion” and played down the likelihood of US military action, while still publicly rejecting the Greenland pressure campaign.

The EU “trade bazooka” and why it makes London nervous

Some EU voices, led most loudly by Paris, have floated using the bloc’s Anti-Coercion Instrument, a tool designed to hit back when tariffs are used as political leverage.

The Commission’s tone, however, has leaned towards de-escalation, at least for now.

“Our priority is to engage, not escalate.”

That matters for Britain because a wider US–EU tariff war can still batter UK growth through supply chains, markets and demand, even if the UK tries to sit on the sidelines.

Labour’s awkward bind: talk tough, depend on the US

Here’s the political reality Starmer won’t enjoy saying out loud: Labour can posture about “standing up” to Trump, but Britain’s security architecture is deeply intertwined with the US.

So the Government is betting on private diplomacy and controlled language, while hoping the EU keeps its head and avoids a spiral of retaliation.

That might be prudent statecraft, but it also leaves voters watching a Prime Minister condemn tariffs as “wrong” while offering no hard deterrent beyond polite phone calls.

Meanwhile at home: Unite warns Labour is “self-harming” on defence jobs

As the Greenland row exposes Britain’s reliance on Washington, Labour is also taking flak domestically over delays to its Defence Investment Plan.

Unite, Labour’s biggest union backer, says the uncertainty is already chilling decisions in the defence industrial base.

“The government’s inertia on this issue is an act of self-harm… the government needs to stop the dither and delay.”

The warning is blunt: delays risk jobs, skills and capacity just as Europe’s security environment is hardening and alliance tensions are rising.