US President Donald Trump has once again questioned whether NATO allies would “be there” if the United States “ever needed them,” claiming that the alliance’s troops “stayed a little back” from the frontlines in Afghanistan.

The president also suggested the U.S. should have “put NATO to the test” to advance his domestic agenda.

President Donald Trump’s Wednesday speech at the World Economic Forum in Switzerland was filled with inaccurate claims – notably including false and misleading statements about NATO and Greenland, the self-governing Danish territory he is pushing for the US to acquire.

In a Truth Social post, President Trump suggested putting the world’s strongest military alliance “to the test” by invoking its mutual defense clause.

Perspective: Trump's latest NATO broadside outrages America's allies amid lingering doubts over the alliance's future.

NATO chief Mark Rutte says U.S. versus Danish control of Greenland was not discussed in his talks with President Donald Trump, which led to an agreement on new Greenland "framework."

Negotiations between the U.S., Denmark and Greenland will continue, a NATO spokesperson said Wednesday, following President Trump’s announcement that he had reached the “framework of a future deal” with NATO Secretary-General Mark Rutte.