French President Francois Hollande speaks during a media conference at the conclusion of an EU summit in Brussels on Friday, Dec. 18, 2015. European Union leaders reconvened in Brussels for the final day of their year-end summit with a wide-ranging agenda including how to build greater economic unity among their 28 countries and stepping up the fight against extremism. (AP Photo/Virginia Mayo)

EU leaders vow to fight against terror

The summit is the first time EU leaders have met since the Nov. 13 attacks in Paris that killed 130 and wounded hundreds of others.