This book presents a range of analyses across the security spectrum, bringing a deep understanding of core global security challenges into contention with ongoing theoretical debates between critical and traditional approaches. Chapters analyse the evolving and shifting dynamics of geopolitics, prolonged armed conflicts, large-scale public health emergencies, and economic fractures. Additionally, authors discuss climate shocks, deepening social and economic inequity, trends in nationalism and populism, gendered violence, as well as challenges pertaining to cyber insecurity, emerging technologies, nuclear weapons, and global terrorism. The book illustrates these unparalleled circumstances, taken together with the epochal juncture expressed in the global pandemic, have evolved and coalesced to redefine the many complexities and oscillations of global security.