Islamic State militants have downed a military helicopter near Palmyra, Syria, killing two Russian pilots on board. The helicopter had been attacking the advancing terrorists at Damascus’ request when it was taken down, according to the Russian defense ministry - READ MORE 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.