President Donald Trump insisted he won't use force to acquire Greenland in a speech at the World Economic Forum, where he said that the US is booming but Europe is "not heading in the right direction."

US President Donald Trump on Wednesday called for immediate negotiations toward a deal to acquire Greenland, adding that he would not use force in his campaign for the northern island.

Trump ruled out the use of force to acquire Greenland, but called for "immediate negotiations".