European Union leaders will meet in Bratislava, Slovakia, today to chart their post-Brexit future, focusing on defence cooperation and border security in a bid to heal deep divisions in particular over migration. <br/><br/>The 27 leaders will hold a special summit in the Slovakian capital to launch a road-map for a post-Brexit European Union. <br/><br/>Meanwhile, on the eve of the summit, EU President Donald Tusk has said the leaders must take a sober and brutally honest look at the bloc's problems, in the wake of Britain's vote to leave the EU.<br/><br/>Europe is reeling from the worst migrant crisis since World War II, deadly terror attacks and fallout from the 2008 financial meltdown.