Lebanon's civil war ended 25 years ago, but the sectarian divisions that sliced its capital into different enclaves still hold today. Everyone coexists relatively peacefully — most of the time.
Congress approved arming moderate rebels in Syria to battle Islamic State militants. Experts say that might violate international law banning the use of force against duly constituted governments.
Christine Fair, author of the book Fighting to the End: The Pakistan Army's Way of War, talks about why she believes the U.S. and Pakistan face a conflict of interest in fighting the Taliban.
NPR international correspondent Deb Amos just returned from her three-week trip along the Turkey-Syria border. She talks to NPR's Ari Shapiro about the conflict she has been covering.
Some critics say the al-Qaida unit known as the Khorasan Group was bluffed up as an excuse for U.S. airstrikes in Syria. Intelligence officials and analysts say the group exists and is dangerous.
The U.S. says it has a broad coalition in its fight against ISIS militants in Iraq and Syria. France is one of the more active countries but is only taking part in military action in Iraq, not Syria.
Islamic State militants have stepped up attacks on Kobani, which lies along the Turkey-Syria border and has been encircled by the extremists for weeks.