How did Ukraine come to possess—and then relinquish—the world's third-largest nuclear arsenal, and what does that history tell us about European security today? Mariana Budjeryn is the author of Inheriting the Bomb: The Collapse of the USSR and the Nuclear Disarmament of Ukraine, winner of the 2024 William E. Colby Military Writers' Award. A native of Ukraine and one of the world's leading experts on post-Soviet nuclear history, she brings unparalleled insight into the forces shaping the war in Ukraine and the future of the European security order.

What’s at stake for American business and diplomacy as the U.S.-China relationship enters a new era? Sean Stein brings nearly three decades of diplomatic experience—including service as U.S. Consul General in Shanghai and Shenyang—combined with deep expertise advising multinational corporations on navigating the world’s most consequential bilateral relationship. As president of the US-China Business Council, he represents more than 270 American companies operating in China and advocates for balanced engagement between the two economic superpowers.