Dramatic PhotosRebel Fighters Inside Aleppo (PHOTOS)04.14.13Dramatic PhotosRebel Fighters Inside Aleppo (PHOTOS)Photojournalist Yusuf Sayman ventured to Aleppo’s front lines for three days in early April and returned with these searing portraits of the rebels’ desperate fight.04.14.13 8:00 PM ETYusuf SaymanNine months after rebels launched their surprise offensive into Aleppo, Syria’s largest city and commercial capital remains a vital battleground in its grinding civil war. Once considered a stronghold for Syrian President Bashar al-Assad, Aleppo is now mired in a deadly stalemate, as rebel and regime forces wage daily battles and Assad’s warplanes sow terror overhead. Photojournalist Yusuf Sayman ventured to Aleppo’s front lines for three days in early April and returned with these searing portraits of the rebels’ desperate fight. Here, a rebel fighter, left, eyes a government sniper. Yusuf SaymanThis area on Aleppo’s front lines is regularly shelled, pounded by airstrikes, and targeted with sniper fire. Yusuf SaymanA rebel fighter searches for a hidden sniper. Yusuf SaymanIn Aleppo's Old City, a UNESCO World Heritage site, a rebel fighter walks through the battered streets. Yusuf SaymanA view of the city through a hole used by a rebel sniper. Yusuf SaymanA young fighter in Aleppo’s decimated Bustan Al-Basha neighborhood. Yusuf SaymanA 17-year-old rebel does traffic patrol. Yusuf SaymanThe chief of Aleppo’s military police, Abu Abdullrahman, takes complaints from residents. The military police are a branch of the powerful Liwa Tahweed rebel brigade and have been tasked with keeping order. Yusuf SaymanAn evidence closet at the headquarters of Aleppo’s military police. Yusuf SaymanA military police officer shows counterfeit money that was confiscated in the market. Yusuf SaymanOfficers resting in the military police headquarters. Yusuf Sayman Smoke rises from a building hit by artillery fire in Aleppo’s Karm al-Jabal neighborhood. Yusuf SaymanA rebel fighter cooks rice while a sniper waits in his position atop a refregirator. The destroyed homes of the Old City now house rebel and regime forces. Yusuf SaymanA rebel fighter walks through a destroyed house in Aleppo’s Old City. Yusuf SaymanRebels move through makeshift holes between houses to avoid exposing themselves in the streets. Yusuf SaymanHomemade bombs are used frequently by rebels to make up for a shortage in arms. Yusuf SaymanA rebel fighter takes a tea break. Yusuf SaymanA rebel fighter walks through a destroyed house.