Turkish army tanks head for the Syrian border town of Afrin, an enclave in northwestern Syria controlled by Kurdish fighters, Hassa, Turkey, Jan. 22, 2018 (AP photo).

The changing alliances in Syria’s civil war have pitted militaries and militias against each other, drawing Turkey progressively deeper into the conflict. Find out more when you subscribe to World Politics Review (WPR). In January 2018, Turkish forces attacked Afrin, a Kurdish-controlled enclave in northwestern Syria, putting both American and Russian plans for Syria to the test. Most of Afrin’s original inhabitants are Kurds belonging to the People’s Protection Units, or YPG. The YPG is a Syrian appendage of the Kurdistan Workers’ Party, the PKK, which has been locked in conflict with the Turkish government since the 1970s. The YPG […]