Every year, the world spends about $2 trillion on wars. The total value of the global arms trade alone was at least $94.5 billion in 2014. The veteran peace campaigner suggests that establishing world peace would cost the global economy just $2 billion. She shows how everybody, from individuals in their communities to diplomats and world leaders, can realistically work together to end interminable cycles of violence and build a better society. Elworthy’s entire working life has been dedicated to building peace. She has been three times a nominee for the Nobel Peace Prize, and is founder of the Oxford Research Group. Chaired by Sarfraz Manzoor.