European Union leaders are gathering in Brussels on December 15 for their last summit of the year, where they are expected to discuss further political, military, humanitarian, and financial aid for Ukraine and how to restore the war-wracked country's critical infrastructure. Ukrainian President Volodymyr Zelenskiy will join via video link at the start of the meeting. EU leaders could also grant Bosnia-Herzegovina official candidate status to join the bloc, following a similar approval for Ukraine and Moldova in June. To read the highlights of the summit agenda, click here.