The last 12 months have been arguably the most challenging that the European Union has ever had to face since its inception in the 1950s. The bloc has struggled to cope with a massive influx of refugees, and the spectre of terrorism has also been raised, with deadly attacks having taken place in Brussels and Paris.At the same time, there appears to have been a widespread popular rejection of traditional political institutions, with fringe movements having made significant gains in several EU member states. There also remains the very real possibility of the United Kingdom voting to leave the union in the coming weeks, with citizens from several other member states having also advocated their support for a similar referendum on EU membership.So what effect will such a large-scale influx of migrants have on the EU? How has the rise in anti-EU sentiment affected the political landscapes in different member states? And how real are the concerns that the very existence of the EU is under threat? These questions and much more on this edition of Today, where will be discussing the challenges currently facing the European Union.