French President Emmanuel Macron strongly opposed Donald Trump's idea of taking over Greenland. During his visit, Macron said the island is "not to be sold, not to be taken." His visit comes as the US shows growing interest in the Arctic region.

To address concerns voiced by Trump that Denmark could not defend Greenland in the face of Russian or Chinese confrontation, Frederiksen says it would be a priority for Denmark to step up its defense role in the Arctic in partnership with other NATO countries as well as to do more on Europe's eastern frontier.

This move comes as President Donald Trump seeks to take control of the kingdom's semi-autonomous territory of Greenland.

Denmark approves bill allowing US military bases with sweeping powers over Danish civilians. Critics warn of sovereignty loss amid Greenland dispute.

As Trump vows to "get Greenland," direct flights from the U.S. are starting − on his birthday. Who will visit? What kind of reception will they get?