In the aftermath of the recent Paris attacks, members of the international coalition against the so-called Islamic State, including Britain, have been weighing up the effectiveness of air-strikes on IS strongholds inside Syria. But what impact has the intensified military campaign against IS had on the Syrian opposition? We speak to Monzer Akbik of the Syrian National Coalition, an umbrella organisation made up of Syrian opposition groups. Does he believe their battle against Assad has been re-energised or weakened by the targeting of IS?