People stuck in war-ravaged Aleppo do not have the luxury of refusing help from jihadists, a high-level member of Syria’s main opposition said, lashing out at international “inaction” in breaking the siege. Damascus and its Russian ally have used the presence of fighters with former Al-Qaeda affiliate Fateh al-Sham Front-previously called Al-Nusra Front-to justify their offensive on rebel-held eastern Aleppo.