French President Francois Hollande (2nd L) shakes hands with Russian Defence Minister Sergei Shoigu (R), with Russian President Vladimir Putin (L) seen in the background, during a meeting at the Kremlin in Moscow, Russia, November 26, 2015. French President Francois Hollande told Russia's Vladimir Putin on Thursday world powers must build a "grand coalition" to combat Islamic State militants who control swathes of territory in Syria and Iraq. REUTERS/Yuri Kadobnov/Pool