The U.S. military has warned the Iraqi government about the possible re-emergence of an upgraded version of Islamic State, following the terror group's defeat in Mosul.br br br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.