Denmark’s prime minister is wrapping up a three-day visit to Greenland on Friday after telling the U.S. “you cannot annex another country,” even with the argument that international security is at stake.

Prime Minister Mette Frederiksen traveled to the strategically critical Arctic island as U.S. President Donald Trump seeks control of Greenland. He argues that Greenland, a semiautonomous territory belonging to the Kingdom of Denmark, is critical to U.S. security.

A week ago, Vice…