TURKEY
BULENT KILIC/AFP/GETTY
Karkamiş, Turkey—Smoke rises on September 1 near the Syrian border town of Jarablus, where Turkey sent ground and air forces to help drive out Islamic State militants who had held the town for three years. Turkey launched its incursion into Syria not only to push back ISIS but also to keep Kurdish fighters there away from its border. Washington has urged Turkey to avoid confrontation with the Syrian Kurdish YPG militia, which has been among the most effective forces fighting ISIS. Turkey views the Kurdish group as terrorists allied with the Kurdistan Workers’ Party, or PKK, which has fought against Ankara for decades.