In April 1993, the Azerbaijani town of Kalbajar fell to ethnic Armenian separatists during the war over the disputed enclave of Nagorno-Karabakh. Photojournalist Khalid Asgarov tells Louise Hidalgo how he and his father were among a column of refugees who fled to safety on a two-day trek over the mountains. Picture: A refugee woman from Kalbajar comforts two of her children after escaping over the mountains in Azerbaijan, 10th April 1993. (Credit: Dima Korotayev/AFP/Getty Images)