Tracey Shelton of Global Post explains how she took one of the most striking sets of photographs of the Syrian conflict:
I was filming a feature on life on the frontlines of Aleppo, Syria. I was camping out with the men of Noor Den al-Zenke Battalion, who man a two-block stretch of back streets that now forms the final line between government troops and opposition forces.
This narrow street had become a makeshift home for the men. Lounge chairs salvaged from abandoned homes formed an area for chatting and drinking tea. Meals were prepared on a grass mat in the middle of the street. We slept in a room on the lower floor in case of air raids. Lookouts were posted at each street corner to both watch and listen for new sniper positions and approaching troops and tanks.
On this morning, the men were relaxed and joking around as they cleaned their area from a tank attack the day before. That time, they had been prepared and the tank had fired too short. This time, the assault came with little warning.
As the cloud of smoke engulfed the street, we ran back and frantically waited for the others to escape through the dust and debris. But no one came. In that split second, three men were reduced to broken, bleeding masses.
After a few minutes of disorientation, a vehicle arrived to transport the bodies. The survivors washed away the blood and flesh in a heartbreaking clean up.
New fighters came to take their posts. And the battle continued.
The full set of seven photographs....