The Asia-Pacific Regional Security Assessment examines key regional security issues relevant to the policy-focused discussions of the IISS Shangri-La Dialogue, Asia’s premier defence summit convened by the International Institute for Strategic Studies. It is published each year in association with the Dialogue and the issues analysed within its covers are central to discussions at the event. Among the topics explored are: US Indo-Pacific strategy, alliances and security partnerships; Chinese perspectives on regional security; Taiwan’s security and the possibility of conflict; the continuing challenges posed by North Korea’s nuclear and missile programmes; the nuclear dynamics of Sino-American security relations; air and naval operations in the Asia-Pacific; Sino-American technology competition; Japan’s competition and cooperation with China; India’s role in the Quadrilateral Security Dialogue (Quad); the evolving regional security engagement of European states and the European Union; China’s role as an upstream state in the Mekong sub-region; and the climate crisis and Asia-Pacific security. As this volume goes to press, the war in Ukraine overshadows the international security landscape and many chapters in this volume touch on the conflict’s ramifications for security in the Asia-Pacific. Authors include leading regional analysts and academics at the forefront of research and analysis: Aidan Foster-Carter, James Crabtree, Peter A. Dutton, Brian Eyler, Michael Green, Sheryn Lee, Jeffrey G. Lewis, Tanvi Madan, Jeffrey Mazo, Ben Schreer, Yun Sun, Nicholas Szechenyi, Brendan Taylor, Ashley Townshend and Paul Triolo.