Turkey-backed Syrian fighters gather on the outskirts of the key Syrian border town of Ras al-Ain on October 16, 2019 during the ongoing assault by Turkey and its allies on Kurdish-held border towns in northeastern Syria. Turkey rebuffed international pressure to curb its military offensive against Kurdish militants in Syria today as US President Donald Trump dispatched his deputy Mike Pence to Ankara to demand a ceasefire. / AFP / Nazeer Al-khatib
A Turkey-backed Syrian rebel fighter sits on a chair along a street in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Military vehicles transporting Syrian regime troops and rolled up mattresses are stationed on the outskirts of the northern Syrian border town of Kobane (also known as Ain Arab) on October 16, 2019. Syrian regime troops and Russian soldiers today entered the key border town of Kobane, following a deal struck with Kurdish authorities amid a deadly Turkish offensive, a war monitor said. / AFP / -
People walk past rubble in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Turkey-backed Syrian rebel fighters ride on vehicles in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Turkey-backed Syrian rebel fighters gesture as they sit in the back of a truck in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
A Turkey-backed Syrian rebel fighter sits on the back of a truck mounted with a weapon in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Brigadier Adnan Ahmad (C), deputy chief of staff of the Turkey-backed "Syrian national army" rebel group, points at a map during a meeting attended by Colonel Ahmad Kurdi (C-L), chief of military police, and other officers at a position outside the village of al-Ghandurah northwest of Manbij in the north of Syria's Aleppo province on October 16, 2019, near the frontlines with Syrian Kurdish forces. / AFP / Aaref WATAD
Turkey-backed Syrian fighters gather on the outskirts of the key Syrian border town of Ras al-Ain on October 16, 2019 during the ongoing assault by Turkey and its allies on Kurdish-held border towns in northeastern Syria. Turkey rebuffed international pressure to curb its military offensive against Kurdish militants in Syria today as US President Donald Trump dispatched his deputy Mike Pence to Ankara to demand a ceasefire. / AFP / Nazeer Al-khatib
A Turkey-backed Syrian rebel fighter sits on a chair along a street in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Military vehicles transporting Syrian regime troops and rolled up mattresses are stationed on the outskirts of the northern Syrian border town of Kobane (also known as Ain Arab) on October 16, 2019. Syrian regime troops and Russian soldiers today entered the key border town of Kobane, following a deal struck with Kurdish authorities amid a deadly Turkish offensive, a war monitor said. / AFP / -
People walk past rubble in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Turkey-backed Syrian rebel fighters ride on vehicles in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Turkey-backed Syrian rebel fighters gesture as they sit in the back of a truck in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
A Turkey-backed Syrian rebel fighter sits on the back of a truck mounted with a weapon in the border town of Tal Abyad, Syria, October 16, 2019. REUTERS/Khalil Ashawi
Brigadier Adnan Ahmad (C), deputy chief of staff of the Turkey-backed "Syrian national army" rebel group, points at a map during a meeting attended by Colonel Ahmad Kurdi (C-L), chief of military police, and other officers at a position outside the village of al-Ghandurah northwest of Manbij in the north of Syria's Aleppo province on October 16, 2019, near the frontlines with Syrian Kurdish forces. / AFP / Aaref WATAD
Turkey-backed Syrian fighters gather on the outskirts of the key Syrian border town of Ras al-Ain on October 16, 2019 during the ongoing assault by Turkey and its allies on Kurdish-held border towns in northeastern Syria. Turkey rebuffed international pressure to curb its military offensive against Kurdish militants in Syria today as US President Donald Trump dispatched his deputy Mike Pence to Ankara to demand a ceasefire. / AFP / Nazeer Al-khatib
Erdogan 'threw away' Donald Trump's letter urging a deal on Syria
Mr Trump warned Recep Tayyip Erdogan 'not to be a tough guy' and make a deal