Fighting rages amid Turkish push in Kurdish enclave in Syria

Turkish army tanks enter Afrin, an enclave in northern Syria controlled by U.S.-allied Kurdish fighters, in Hassa, Hatay, Turkey, Monday, Jan. 22, 2018. Turkey's President Recep Tayyip Erdogan has said his country will "not take a step back" from its military operation on Afrin. Speaking in Ankara on Monday - the third day of the operation— Erdogan said Turkey's "fundamental goal" is ensuring national security, preserving Syria's territorial integrity and protecting the Syrian people.(AP Photo)

HASSA, Turkey — Intense fighting flared Monday as Turkish troops and their allies advanced on a Kurdish enclave in northwestern Syria, the third day of Ankara’s offensive to oust a U.S.-allied Kurdish militia from the area, according to the militia and a war monitoring group.