Danish PM Mette Frederiksen is visiting Greenland's capital Nuuk for talks with the territory's leader, Jens-Frederik Nielsen, after a rollercoaster week that saw US President Donald Trump roll back his threats to forcibly take over the Arctic island and agree to further negotiations. Tensions had risen precariously over the past couple of weeks, until a stunning turnaround on Wednesday, when Trump suddenly ruled out military action, and withdrew his threats to slap tariffs on several European allies. Trump posted on social media that a 'framework of a future deal with respect to Greenland' had been reached, following his meeting with NATO chief Mark Rutte at the World Economic Forum in Davos. However, few details have been given, and there are questions about what exactly was agreed between the US president and the secretary general. The Danish prime minister travelled directly from Brussels, where she also met face-to-face with Rutte earlier on Friday morning. According to Rutte's post, they agreed 'to enhance deterrence and defence in the Arctic'. After landing at Nuuk airport, Frederiksen was greeted by Nielsen, who welcomed her warmly. 'I am in Greenland today to show our strong Danish support for the Greenlandic people,' she stated. Frederiksen underscored that this was a 'serious situation' and ensured that Greenland's sovereignty remains a non-negotiable issue. The US has approximately 150 military personnel at its base in Greenland, operating under a longstanding agreement with Denmark. As negotiations are set to continue, Frederiksen assured that security would be the primary focus.