In 2017, alarmed at growing nuclear risks and threats and exasperated at the glacially slow pace of progress toward nuclear disarmament under the NPT framework, two-thirds of UN member states voted to adopt a Nuclear Ban Treaty as an alternative normative framework. In 2018, the US withdrew from the Joint Comprehensive Plan of Action (JCPOA, 2015) that had mothballed Iran’s alleged nuclear weapon program. In 2019, the US and Russia suspended the Intermediate-Range Nuclear Forces Treaty (INF, 1987) and announced plans to invest in new ground-based missiles. In 2021, New START will expire unless renewed, leaving the world without any nuclear arms control agreement to regulate US and Russian arsenals that makeup over 90 percent of global nuclear stockpiles. This APLN session will address the following key questions: What are the implications of these developments for the Asia-Pacific? What can Asia-Pacific countries do to reinvigorate regional and global nuclear arms control? How can Asia-Pacific nuclear-armed states, nuclear umbrella states, and non-nuclear weapon states work together to reduce nuclear risks and eliminate nuclear threats?