Renewed conflict has erupted over Nagorno-Karabakh, a primarily ethnic Armenian region in Azerbaijan. Ambassador Carey Cavanaugh, former US diplomat with expertise in the Caucasus, now professor of diplomacy at the University of Kentucky, and Jonathan Katz, director of Democracy Initiatives and senior fellow at The German Marshall Fund of the United States, discuss the strategic implications of this conflict for the United States, Europe, Russia and Turkey with host Carol Castiel.