UK PM Starmer urged Trump to withdraw 10% tariff threat on allies, calling it unjust and damaging to NATO.

Prime Minister Keir Starmer privately urged former U.S. President Donald Trump to reverse his threat of 10% tariffs on allies, calling the move unjust and damaging to NATO unity. The call, held on January 17, 2026, followed Trump’s broader warnings of economic retaliation, including over Greenland, which Starmer condemned as counterproductive. While no details were released, the conversation reflected growing concern among Western leaders about the destabilizing impact of Trump’s trade rhetoric on transatlantic relations and collective security.