epa04815521 Members of Kurdish People Defence Units (YPG) flash victory sign after coming from Syrian town of al-Raqqa, in Tel Abyad, Syria, 23 June 2015. Kurdish fighters backed by US-led airstrikes captured a strategic town from Islamic State on 23 June as they pushed towards the extremist group's Syrian heartland. The Kurdish People's Protection Units (YPG) and allied rebels took complete control of the town of Ain Issa, bringing them within 50 kilometres of Islamic State's de facto Syrian capital of al-Raqqa, the Syrian Observatory for Human Rights said.  EPA/SEDAT SUNA