ALEPPO, Syria â€” Their names were Issa, Ahmed and Sheik Mahmoud Qasim. They were fathers, brothers, sons; a student, a teacher and a labourer. In an instant, they were all killed by tank fire. They are not alone. The Syrian conflict has now dragged on for 5 years and cost the lives of hundreds of thousands of people. The dead represent all kinds â€” civilians, rebel fighters, regime soldiers and officials, aid workers, activists, journalists. Headlines that track the numbers of dead are easy to pass over when they are so frequent. Rarely do we stop to think about what those numbers represent. This photo series shows three faces behind the numbers. At first, four men laugh and joke with each other, then â€” in an instant â€” only one emerges from the cloud of smoke and debris. Perhaps the most poignant fact is that following their death, nothing changed. Everyday, new people replace the fallen in a battle that continues with what seems like no end in sight.