On 9th July 1995, the Serbian army attacked Srebrenica’s Muslim ghetto. Nearly 8,000 people were massacred in three days. Twenty years on, the city’s history seems frozen in obscurity. A new generation, however, is travelling its ruins and learning as much as it can from its consequences. This series of photographs by Adrien Selvert, annotated with text by New York Times journalist Roger Cohen, has won numerous awards including the 2015 Prix Maison Blanche.