Donald Trump has announced new tariffs of 10 per cent on key European economies, set to rise to 25 per cent in June, unless they support his controversial plan to acquire Greenland. The proposed levies target countries including the UK, Germany, France and Denmark, and are framed as a response to Europe's refusal to back the deal. Trump argues the island is essential for US defence, but the move has drawn strong criticism from European leaders who warn it risks undermining NATO and existing trade ties. Mass protests in Greenland and Denmark have signalled fierce public opposition, while EU officials are now reconsidering the ratification of a recent trade agreement with the US. Economically, the threat of tariffs adds to global uncertainty, potentially disrupting supply chains and raising costs. Markets have reacted nervously, with European stocks slipping and safe haven assets like gold edging higher as investors weigh the implications of a widening transatlantic rift.