One of the Isis' most hunted leaders delivered a rare speech that suggested the militants are feeling the pinch of recent territorial losses and the killing of key officials in US airstrikes.
Abu Mohammed al-Adnani, who is the chief spokesman for Isis (Islamic State) and a close aide to leader Abu Bakr al-Baghdadi, threatened Jews, pledged to defeat America and used typically defiant language to predict victory for the group's self-proclaimed caliphate.
But the defensive tone of the speech, delivered in an audio address posted on one of the Isis websites, suggested also that the militants are contemplating the prospect that their senior leadership will be wiped out and their last important cities be lost.
"Do you think you have won because you have killed one or more leaders? It is a false victory," he said.
"Even if we lose Raqqa or Sirte, we won't be defeated," he added, referring to Isis' self-proclaimed capital in Syria and the city in Libya it more recently conquered.