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 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.

The drones will be used to monitor the cables and prevent sabotage.

Ukraine's government on Tuesday sacked a deputy defence minister in charge of weapons purchases amid infighting over procurement that is complicating Kyiv's attempt to reassure key Western partners at a critical moment in the war with Russia.

Today on CNN 10, we learn what NATO is doing to protect Europe’s vulnerable undersea infrastructure after a series of attacks on energy and internet cables. We also track the largest iceberg in the world as it travels on currents in the Atlantic Ocean towards land.

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.