He is on Sky News just now being asked for his opinion on a photo of injured children in Northern Syria and the cause of their injuries. He is saying that they look like white phosphorus burns which is a chemical weapon Turkey and the 'regime' including Syria and Arab militias, use.
H de B-G came across as this very well informed, concerned and authoritative humanitarian!
PS The only use of white phosphorus I know about is of that used by the Israelis in Gaza. Mads Gilbert, the Norwegian surgeon who went out to help treat the wounded gave a talk at UCL. The photos he showed were horrific. Flesh was burned through right down to the children's bones.