Please follow https://www.defense.gov//portals/1/features/2018/0418_syria/img/United-States-Assessment-of-the-Assad-Regime’s-Chemical-Weapons-Use.pdf.

Please follow https://www.defense.gov//portals/1/features/2018/0418_syria/img/United-States-Assessment-of-the-Assad-Regime’s-Chemical-Weapons-Use.pdf.