NATO Secretary-General Mark Rutte and Danish Prime Minister Mette Frederiksen agreed at a meeting on Tuesday that allies need to focus on strengthening defences in the Arctic, a source familiar with the talks told Reuters.

NATO said on Tuesday that acts of sabotage carried out across the military alliance over the past years included threats to plot the murder of industry leaders such as the head of German arms maker Rheinmetall.

NATO has also taken steps to ensure its members are positioned effectively against threats in sufficient numbers and maintained at a high state of readiness. At the 2022 Madrid Summit, NATO increased the number and locations of its forces deployed on its eastern flank, integrating modern strategies and technologies to enhance its effectiveness.

The EU and Nato have taken a vow of silence over Greenland after Denmark requested its key allies refrain from reacting to Donald Trump’s threats to seize the Arctic island.

NATO Secretary General Mark Rutte urged member states of the alliance on Monday to step up defence spending beyond their common goal of 2% of national output set a decade ago, saying this was now too low because of new challenges.

Hudson Institute senior fellow Rebeccah Heinrichs joins 'Fox News Live' to discuss Israel keeping troops in Lebanon despite the deadline and Trump pushing for an historic Saudi investment in American businesses.

With its powerful camera, the French Navy surveillance plane scouring the Baltic Sea zoomed in on a cargo ship plowing the waters below — closer, closer and closer still until the camera operator could make out details on the vessel's front deck and smoke pouring from its chimney.

Russia has condemned the Western alliance for ramping up its naval presence in the so-called 'NATO lake' after alleged sabotage by Moscow-linked vessels.

An overwhelming majority of Greenlanders have rejected US President Donald Trump, saying they do not want to be bought by America, according to an opinion poll. The first survey of Greenlanders since Trump renewed his interest in buying the Arctic island found that 85 per cent did not want to leave the Kingdom of Denmark and become part of the US.

Denmark to increase military spending in Arctic by $2 billion - as Trump sets his sights on Greenland - ‘We must face the fact that there are serious challenges regarding security and defense in the Arctic and North Atlantic,

Frederiksen didn't directly mention Trump's threat in comments at a meeting with German Chancellor Olaf Scholz, but said that “we are facing a more uncertain reality, a reality that calls for an even more united Europe and for more cooperation.