European heads of state and government (Back, from L) Italian Prime minister Matteo Renzi, Greek Prime Minister Alexis Tsipras, Irish Prime minister Enda Kenny, Croatia Prime minister Zoran Milanovic, Danish Prime minister Helle Thorning Schmidt, Polish Prime minister Ewa Kopacz, Hungary Prime minister Viktor Orban, Belgian Prime minister Charles Michel, Spanish Prime minister Mariano Rajoy, Swedish Prime minister Stefan Lofven, Czech Prime minister Bohuslav Sobotka, Slovenian Prime minister Miror Cerar, Portuguese Prime minister Pedro Passos Coelho, German Chancellor Angela Merkel, Finnish Prime minister Alexander Stubb, Austrian Federal Chancellor Werner Faymann (front, from L) High Representative of the European Union for Foreign Affairs and Security Policy Frederica Mogherini, Estonian Prime minister Taavi Roivas, Maltese Prime minister Joseph Muscat, Dutch Prime minister Mark Rutte, EU Commission President Jean-Claude Juncker, Lithuania's President Dalia Grybauskaite, French President of Republic Francois Hollande, Latvian Prime minister Laimdota Straujuma, European council President Donald Tusk, Romanian Prime minister Klaus Werner Iohannis, Cyprus President of Republic Nicos Anastasiades, European Parliament President Martin Schulz, Luxembourg's Prime minister Xavier Bettel, Slovakian Prime minister Robert Fico, Britain Prime minister David Cameron, Bulgarian Prime minister Boiko Borissov and, European Council Secretary-General Uwe Corsepius pose for a family photo during a European Union summit at the EU headquarters in Brussels on April 23, 2015. EU leaders gathering in Brussels on April 23 will consider launching a military operation against human traffickers in Libya, held responsible for deaths of hundreds of migrants this year in the Mediterranean, a draft statement showed. AFP PHOTO / JOHN THYS (Photo by JOHN THYS / AFP)