Donald Trump’s desire to annex Greenland will not be thwarted and there could be meaningful U.S. action related to the Arctic island within “weeks or months,” according to a senior administration official.

That’s the view of Thomas Dans, Trump’s Arctic commissioner. He’s regarded as one of the main proponents of the president’s interest in Greenland, an idea first brought to Trump by billionaire and former diplomat Ronald Lauder.

Dans has been working on the issue since 2020.