General Mark Rutte may have been instrumental in persuading U.S. President Donald Trump to scrap his threat of tariffs as he presses for control over Greenland.

Rutte told members of the European Parliament that one of the workstreams falls under NATO’s collective responsibility.

NATO’s chief said a breakthrough over Greenland was secured without discussing the territory’s sovereignty with President Donald Trump, focusing rather on the broader issue of security in the Arctic region.

Trump’s stunning turn on Greenland has once again shone the spotlight on the NATO secretary general, who has emerged as a pivotal figure for a frazzled Europe struggling to get through to the US president.