Turkey threatens new offensive in Syria Turkish President Recep Tayyip Erdogan is threatening to launch a new offensive against U.S.-backed Kurdish fighters in Syria, a move likely to further strain ties between NATO allies Turkey and the United States Turkish army tanks near Syrian border, Jan 2018 TURKISH MILITARY OPERATIONS IN SYRIA 2016-17: Euphrates Shield operation to clear so-called Islamic State (IS) militants from border and halt advance of Kurdish fighters Oct 2017-present Observer forces posted in Idlib region to enforce “de-escalation” deal with Russia and Iran Jan 2018-present Olive Branch operation in Kurdish enclave of Afrin to clear People’s Protection Units (YPG) militia from border ---------------------------- President Erdogan’s threat follows U.S. decision to set up observation posts in Syria, which Turkey says are aimed at protecting Kurdish YPG militia JORDAN TURKEY ISRAEL IRAQ LEBANON SYRIA Kobane Tal Abyad Amuda Derbasiya Hama Homs Damascus Afrin IDLIB Aleppo Raqqa Manbij Ras al-Ain 100km 60 miles Syrian government Turkey and allies IS militants Kurdish-led forces Syrian rebels U.S. observation posts Sources: AP, Syria Live Map, Asharq Al-Awsat Pictures: Getty Images © GRAPHIC NEWS River Euphrates