France, Jan. 15 -- "If the sovereignty of a European ally were affected, the cascading consequences would be unprecedented," Macron told a cabinet meeting, according to government spokeswomanMaud Bregeon.

"France is closely monitoring the situation and will act in full solidarity with Denmark and its sovereignty."

Macron's comments came after US President Donald Trump said American control of Greenland was "vital" for a planned Golden Dome air and missile defence system.

Greenland is an autonomous territory within the Kingdom of Denmark and has a population of about 57,000.

France to open Greenland consulate amid Trump takeover threats Security claims and NATO

"The United States needs Greenland for the purpose of National Security," ...