U.S. President Donald Trump on Sunday once again claimed that the United States will acquire Denmark's Greenland "one way or the other."

Axar.az reports, citing Xinhua, speaking aboard Air Force One, Trump said that with regard to Greenland, he was not considering leasing or short-term arrangements, but "acquiring" the territory.

"We're talking about acquiring, not leasing, not having it short term, we're talking about acquiring," said Trump, adding it's insufficient for the country to merely maintain military bases on the island.

"I'd love to make a deal with them. It's easier, but one way or the other, we're going to have Greenland," Trump asserted.

Asked if the U.S. demand for Greenland will damage NATO and European allies, Trump said, "If it affects NATO and it affects NATO, but you know, they need us much more than we need them."

"I'm the one that saved NATO," Trump claimed, again questioning whether NATO allies would support the United States when it is needed.

"I just wonder whether or not, if we needed NATO, would they be there for us? I'm not sure they would," the president said.