Syria has witnessed unimaginable atrocities, with thousands killed and millions more displaced. With multiple parties involved in the conflict, is it possible for a peaceful resolution to be achieved? BBC’s Chief International Correspondent Lyse Doucet, Chatham House’s Head of Middle East and North Africa Programme Lina Khatib, journalist Rania Abouzeid (No Turning Back) and other leading experts examine the dynamics of the war, explore its cultural, social and political costs, and consider its regional and international implications with Channel 4’s International Editor Lindsey Hilsum (In Extremis).