This image grabbed from a screen shows German Chancellor Angela Merkel(up) attending an anti-terrorism video conference in Brussels, Belgium, on Nov. 10, 2020.The European Union (EU) on Tuseday held a video conference with Austria, Germany, France and The Netherlands to fight against terrorism. (European Union/Handout via Xinhua)

This image grabbed from a screen shows Austrian Chancellor Sebastian Kurz (L, up) and French President Emmanuel Macron (R, up) attending an anti-terrorism video conference in Brussels, Belgium, on Nov. 10, 2020.The European Union (EU) on Tuseday held a video conference with Austria, Germany, France and The Netherlands to fight against terrorism. (European Union/Handout via Xinhua)

European Commission President Ursula Von Der Leyen attends an anti-terrorism video conference in Brussels, Belgium, Nov. 10, 2020.The European Union (EU) on Tuseday held a video conference with Austria, Germany, France and The Netherlands to fight against terrorism. (European Union/Handout via Xinhua)

This image grabbed from a screen shows Dutch Prime Minister Mark Rutte (up) attending an anti-terrorism video conference in Brussels, Belgium, on Nov. 10, 2020.The European Union (EU) on Tuseday held a video conference with Austria, Germany, France and The Netherlands to fight against terrorism. (European Union/Handout via Xinhua)