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TOPSHOT - US forces, accompanied by Kurdish People's Protection Units (YPG) fighters, drive their armoured vehicles near the northern Syrian village of Darbasiyah, on the border with Turkey on April 28, 2017. / AFP PHOTO / DELIL SOULEIMAN (Photo credit should read DELIL SOULEIMAN/AFP/Getty Images)

TOPSHOT - US forces, accompanied by Kurdish People's Protection Units (YPG) fighters, drive their armoured vehicles near the northern Syrian village of Darbasiyah, on the border with Turkey on April 28, 2017. / AFP PHOTO / DELIL SOULEIMAN        (Photo credit should read DELIL SOULEIMAN/AFP/Getty Images)