Trump threatens tariffs for countries if they oppose U.S. control of Greenland

U.S. President Donald Trump suggested Friday that he may punish countries with tariffs if they don’t back the U.S. controlling Greenland, a message that came as a bipartisan Congressional delegation sought to lower tensions in the Danish capital.

Trump for months has insisted that the U.S. should control Greenland, a semiautonomous territory of NATO ally Denmark, and said earlier this week that anything less than the Arctic island being in U.S. hands would be “unacceptable.”

During...