Kurt Almqvist is President of the Axel and Margaret Ax:son Johnson Foundation for Public Benefit. Philip Bobbitt is the Herbert Wechsler Professor of Federal Jurisprudence at Columbia University, and Distinguished Senior Lecturer at the University of Texas. He has served in the US government during seven administrations, including in the post of senior director for strategic planning at the National Security Council. Bobbitt’s books include The Shield of Achilles: war, peace and the course of history and Impeachment: a handbook (with Charles Black, Jr.). Jessica Stern is a research professor at the Pardee School of Global Studies, Boston University and a senior fellow at Harvard’s School of Public Health. She is a 2016 graduate of the Massachusetts Institute of Psychoanalysis. In 2009, she was awarded a Guggenheim Fellowship for her work on trauma and terror. Her books include Denial: a memoir of terror and The Ultimate Terrorists. Rana Mitter, OBE FBA, is Professor of the History and Politics of Modern China, and a fellow of St Cross College, at the University of Oxford. His books include China’s War with Japan, 1937–1945: the struggle for survival, which won the 2014 RUSI/Duke of Westminster’s Medal for Military Literature, and China’s Good War: how World War II is shaping a new nationalism. He won the Historical Association’s Medlicott Medal for Service to History in 2020, and is a regular presenter for BBC Radio in the UK. Gregory Feifer is executive director of the Institute of Current World Affairs in Washington. A journalist and author, he was previously NPR’s bureau chief in Moscow. His book Russians: the people behind the power examines the social behaviour behind the country’s political culture, and his work has appeared in publications including the New York Times, the Washington Post and Foreign Affairs. An associate of Harvard University’s Davis Center, he is currently writing a biography of the Russian politician Boris Nemtsov. Tom Holland is a historian and translator. He has made films on subjects ranging from dinosaurs to the Islamic State, and presents BBC Radio 4’s Making History and the podcast The Rest Is History. He has written books on Greek, Roman and early medieval history, and his most recent, Dominion, traces the evolution of Christianity as a revolutionary force. He has translated Herodotus and Suetonius for Penguin Classics.