Al-Nusra

Report: Russia Working to Pick Off U.S.-Backed Syrian Rebels

Rebel leader blames U.S. policy

Kerry Expected to Detail U.S. Proposal to Coordinate With Russia in Syria in August

Report: Obama Proposes Pact With Russia to Strength Military Cooperation in Syria

US-Trained Syrian Rebels Allegedly Hand Weapons to Al Qaeda Affiliate

Turkey Tipped Off Al Qaeda Group that Grabbed U.S.-Trained Fighters, Syrian Rebels Say

Terrorists on the Move

U.S. airstrikes prompt Islamic State, al Qaeda, fighters to move positions, hide among civilians

Al Qaeda in Syria Was Close to Launching Attack on U.S., Europe

Leader of group targeted in initial strikes

ISIL Operating Sleeper Cells in Southern Syria

Offering food, financial assistance to individuals in the area

Dissent in the Ranks

Al Qaeda leader urges Syrian rebel splinter group to return to Iraq and official affiliate to halt infighting

Christian Community in Syria Could Cease to Exist if Civil War Continues

More than 400,000 Christians have left their homes or the country so far