President Donald Trump said Saturday that he would charge a 10% import tax starting in February on goods from eight European nations because of their opposition to American control of Greenland, setting up a potentially dangerous test of U.S. partnerships in Europe.Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands and Finland would face the tariff, Trump said in a social media post while at his golf club in West Palm Beach, Florida. The rate would climb to 25% on June 1 if no deal was in place for “the Complete and Total purchase of Greenland” by the United...