Trump is targeting Panama, Greenland, Canada

Greenland. Panama. Canada. Does incoming US President Donald Trump really want to make these the 51st, 52nd and 53rd United States?
While Greenland is currently not for sale, the U.S. has purchased land and territories from other countries in the past.
Trump's former White House national security advisor made veiled threats against a NATO ally, taking the Greenland issue in a ...