President-elect Donald Trump appears to be entertaining an American territorial expansion that, if he’s serious, would rival the Louisiana Purchase or the deal that netted Alaska from Russia.

In recent days the president-elect has called for asserting U.S. control over the Panama Canal and Greenland, showing that his “America First” philosophy has an expansionist dimension.

Trump again having designs on Greenland comes after the President-elect suggested that the U.S. could retake control of the Panama Canal.