A rebel aims his gun on the first day of a Syrian government offensive against rebels of the Free Syrian Army (FSA) in the rebel-held district of Salahudin in Aleppo, Syria, on July 28, 2012. Aleppo has become a critical battleground in the 17-month uprising against the government of President Bashar al-Assad, which has claimed an estimated 17,000 lives.
PHOTO: Scott Peterson/The Christian Science Monitor/Getty Images