BRUSSELS, BELGIUM - MARCH 18:  (L-R) Germany's Chancellor Angela Merkel, Britain's Prime Minister David Cameron and France's President Francois Hollande attend a meeting during a European Union leaders summit on migration, March 18, 2016 in Brussels, Belgium. EU leaders have gathered for a two-day summit to discuss a number of issues including the ongoing migrant crisis. (Photo by Francois Lenoir - Pool/Getty Images)