With a nuclear deal around the corner, Russia's decision to proceed with the sale of the sophisticated S-300 missile defense system to Iran sparked a flurry of speculation. How will these developments affect the balance of power in the region? Will it level the playing field or push the region into broader conflict? Oksana is joined by Hossein Dehghan, defense minister of Iran, to examine these issues. 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.