The recent terrorist attacks in Brussels have reopened old debates about how to respond to terrorism across the European Union. Some have focussed on a military response to degrade the terrorists' capabilities, others on an approach centred around cultural and social integration. Others still are advocating dramatically enhancing the strength of European and national borders. How are key EU capitals responding to the enhanced threat of terrorism within their borders? Have the Brussels attacks changed their approach? And will talk of a more Europeanised approach to security and terrorism bear fruit?