The European Union gives "full support" to Denmark against Donald Trump"s threat to take control of Greenland and stands ready to defend the principles of national sovereignty and territorial integrity as it did when Russia launched the full-scale invasion of Ukraine, António Costa told Euronews in a wide-ranging interview. "It is these fundamental principles that lead us to support Ukraine. It is these fundamental principles that lead us to condemn the violations of the border in the Democratic Republic of the Congo," the president of the European Council said.