Turkish-backed Syrian rebels watch as smoke billows from the border town of Ras al-Ain on October 12, 2019, as Turkey and it's allies continued their assault on Kurdish-held border towns in northeastern Syria. - Turkey kept up its assault on Kurdish-held border towns in northeastern Syria on Saturday on the fourth day of an offensive that is drawing growing international condemnation, even from Washington. (Photo by Nazeer Al-khatib / AFP)