A picture taken on April 7, 2017 at Reyhanli district in Hatay, southern Turkey, shows the border wall between Turkey (down side) and Syria (up side).
On April 4, 2017, a suspected chemical attack killed 86 civilians, including 27 children, in rebel-held Idlib province. The alleged chemical attack triggered the first direct US strike against the government of President Bashar al-Assad on April 7, 2017. / AFP PHOTO / OZAN KOSE
