A ceasefire has come into force in Syria. The government and armed opposition groups are obliged to cease hostilities - under an internationally brokered deal, which took effect some hours ago. 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.