- Donald Trump announces plans to hit the UK, Denmark and other European countries with a 10% tariff on "all or any goods" exported to the US from 1 February
- In a post on Truth Social, the US president says these will remain in place until "such time as a Deal is reached for the Complete and Total purchase of Greenland"
- This is a surprise announcement that has now injected a newfound sense of urgency into the issue of Greenland, writes our White House correspondent
- What are tariffs, and how do they work?
- The UK has sought to walk a tight rope with Trump in the past few weeks, this would be a real blow for Downing Street's strategy, our political correspondent writ