All Policy Analysis by Andrew J. Tabler

The best line of defense for regional states worried about the threats posed by ISIS -- including unexpected game changers like Ebola -- is to enhance border and port security.

If Washington continues to bomb ISIS while sidestepping the question of Assad's future, Syria may wind up partitioned between jihadist and Iranian-backed forces.

Four Washington Institute fellows discuss what the president's address shows about his priorities in the Middle East, analyzing what he did and did not say and comparing his latest remarks to his past speeches.

A detailed discussion of how to combat both ISIS and the Assad regime, including through diplomacy and other political means as complements to the existing military campaign.

Ankara's security and political concerns may drive it to establish buffer zones unilaterally, while Washington's hesitance could cost it a coalition.

Expanding strikes to targets northeast of Aleppo would help Washington and its allies exploit fissures between ISIS and local tribes.

Increased al-Qaeda activity on the Golan frontier has some Israelis nostalgic for the days of Assad.