The Turkish military retaliated against attacks of the PYD/PKK from Syria’s Afrin on Jan. 19-20, destroying shelters and hideouts, a military statement said. The statement by Turkey’s General Staff said the army hit the terrorist group’s shelters within the scope of legitimate self-defence. Turkish military units are already deployed in Afrin, a district of Aleppo under siege by the PYD/PKK organization located near the Turkey-Syria border. The PYD/PKK is the Syrian offshoot of the PKK, which is listed as a terrorist organization by Turkey, the US, and EU. A likely military operation in Afrin would follow Turkey’s successful seven-month Operation Euphrates Shield, which ended in March 2017.