A Syrian protester chants slogans as she waves a flag of the opposition as he protest against the regime and its ally Russia, in the rebel-held town of Maaret al-Numan in the north of Idlib province on August 31, 2018. - Its hospitals are battered, residents heavily dependent on aid and escape routes to neighbouring Turkey sealed. If attacked by government forces, Syria's rebel-held Idlib is poised for a humanitarian calamity. (Photo by Zein Al RIFAI / AFP)
A Syrian protester chants slogans as she waves a flag of the opposition in Idlib province. AFP

US delegation heads to Middle East to discuss Syria and Iran