Starmer Warns Trade War Helps No One. Prime Minister Keir Starmer says a trade war is in “no-one’s interest”, responding to threats from Donald Trump to impose a 10 percent tax on UK imports over opposition to US plans for Greenland. Speaking from Downing Street, Starmer says the right approach is calm discussion, stressing that tariffs against allies are not the way to resolve disagreements. He reiterates that the future of Greenland must be decided by its people and by Denmark, calling the principle non-negotiable. While describing the situation as very serious, the prime minister plays down the likelihood of military action and urges national unity. He welcomes cross-party support, including from Conservative leader Kemi Badenoch. Starmer warns against political grandstanding, saying it does nothing for workers whose jobs rely on global relationships and defends maintaining close UK–US ties to protect trade, security and investment.