The Turkish foreign minister will on Thursday attend an informal meeting of the European Union in Brussels for the first time in five years, a Turkish diplomatic source said. Turkey has been an EU candidate since 1999 and launched membership talks in 2005 – but the process has been frozen for years on a number of fronts. Ankara and Brussels have a sometimes fraught relation, with the EU relying on Turkey to house refugees from Syria, but clashing with it on its approach to Greece and the divided island of Cyprus. Brussels is also concerned by Turkey’s human rights record, especially after a fa…