BySara Dorn,

Forbes Staff.

President Donald Trump on Thursday promised “big retaliation” for European countries if they sell U.S. Treasury bonds in response to his threats to impose tariffs on NATO partners resisting his bid to acquire Greenland.

Trump made the comments on the sidelines of the World Economic Forum in Davos, Switzerland, telling Fox Business, “we have all the cards.”

The Danish Pension fund AkademikerPension announced plans this week to sell $100 million in U.S. Treasury bonds after Trump doubled down on his demands to absorb the Danish territory, and the Greenland SISA Pension has said it’s also considering divesting U.S. stocks, according to Bloomberg.