The "Islamic State" (ISIS) terrorist group vowed Tuesday to attack Russia and defeat it, as Moscow announced it had intensified its air campaign against jihadists in Syria, AFP reports.
Meanwhile, Russian President Vladimir Putin criticized Washington for refusing to cooperate with Moscow in its Syrian campaign, which is having an increasingly dramatic effect.
"Russia will be defeated," ISIS spokesman Abu Mohamed al-Adnani said in a recording posted online, calling on "Muslims everywhere to launch jihad against the Russians and the Americans."