EU must remain vigilant and ready to respond to threats, Macron says

The European ​Union must remain ⁠vigilant and ready to respond firmly in ​case ‍of new threats, President ​Emmanuel Macron said in ​Brussels ahead of an emergency EU leaders summit to discuss U.S. President Donald Trump's public ‍intends to acquire ​Greenland. FRANCE 24's Nicholas Rushworth reports.