The OSCE has been central to diplomatic efforts around Russia\u2019s war against Ukraine.\xa0 In this episode, Ambassador Michael Carpenter, U.S. Permanent Representative to the OSCE, discusses the ultimately unsuccessful diplomatic efforts to forestall Russia\u2019s full-scale invasion; the role of the OSCE in ensuring accountability for war crimes and atrocities; and the need to ensure Ukraine\u2019s victory and Russia\u2019s defeat. \xa0\xa0\xa0