Aleppo Today broadcasts are simple but relay crucial information — from tank movements to Internet connectivity — to the people who remain in the embattled northern Syrian town. It relies on a network of 70 correspondents to provide a 24-hour news stream. Aleppo Today hide caption

itoggle caption Aleppo Today

A Syrian rebel fighter is shown in the northeastern Syrian border town of Ras al-Ayn on Nov. 11, several days after the rebels captured it. The rebel takeover has created friction with the town's Kurdish population. Murad Seezer/Reuters/Landov hide caption

itoggle caption Murad Seezer/Reuters/Landov

Moaz al-Khatib, a Muslim cleric, is the leader of the newly formed opposition group, the Syrian National Coalition. The opposition is working to build support inside Syria through Facebook and other social media. Karim Jaafar/AFP/Getty Images hide caption

itoggle caption Karim Jaafar/AFP/Getty Images

A Syrian rebel fighter takes aim at government forces from an apartment in the northern city of Aleppo on Saturday. While the fighting rages, the Syrian opposition is holding talks in Qatar in an attempt to create a new, more unified front. The U.S. announced last week that it favors an overhaul of the opposition leadership. Philippe Desmazes/AFP/Getty Images hide caption

itoggle caption Philippe Desmazes/AFP/Getty Images

Local Syrian doctors prepare to treat a patient in a field hospital in Aldana, Syria, near the Turkish border. Each day, local and expatriate doctors take big risks to treat the wounded in rebel-held areas. Deborah Amos/NPR hide caption

itoggle caption Deborah Amos/NPR

Syrian rebels pose after seizing control of the Bab al-Hawa border post on the Syrian-Turkey border on July 20. Now, the rebels are facing a new challenge: radical Islamists, who they say do not represent them. Bulent Kilic/AFP/Getty Images hide caption

itoggle caption Bulent Kilic/AFP/Getty Images

Rebel fighters take up position near the military airport outside the rebel-held town of Azaz in northern Syria on Aug. 21. In rebel-held towns like Azaz, activists are taking on new, risky roles as the uprising against Syrian President Bashar Assad continues. Youssef Boudlal/Reuters/Landov hide caption

itoggle caption Youssef Boudlal/Reuters/Landov