The UN fears up to 800 thousand civilians are still trapped in the ISIS-held part of Mosul, where the anti-terror operation is now raging. A similar situation was seen in neighbouring Syria a couple of months ago. Back then though, the UN raised concerns over the fate of a hundred thousand people in Eastern Aleppo, as Syrian forces tried to retake it from Al-Nusra terrorists. RT's Ilya Petrenko compares the battles for the two cities.RT LIVE http://rt.com/on-airSubscribe to RT! http://www.youtube.com/subscription_c...Like us on Facebook http://www.facebook.com/RTnewsFollow us on Twitter http://twitter.com/RT_comFollow us on Instagram http://instagram.com/rtFollow us on Google+ http://plus.google.com/+RTListen to us on Soundcloud: https://soundcloud.com/rttvRT (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.