What to know about the latest effort to bring an end to Turkey's 40-year Kurdish conflict

FILE - U.S.-backed Syrian Democratic Forces (SDF) fighters stand guard at Al Naeem Square, in Raqqa, Syria, Monday, Feb. 7, 2022. (AP Photo/Baderkhan Ahmad, File)

QAMISHLI, Syria (AP) — Kurdish-led fighters in Syria, known as the Syrian Democratic Forces, said Tuesday they have launched a counter-offensive against the Turkish-backed Syrian National Army to take back areas near Syria’s northern border with Turkey.

The Kurdish-led SDF is Washington’s critical ally in Syria, targeting sleeper cells of the extremist Islamic State group scattered across the country's east.

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