The book deconstructs the interplay between governance, migration, international relations, and security as a complex and constantly evolving dynamic that has significant implications for individuals, societies, and nations around the world. This book shows that the connections between governance, migration, international relations, and security have become increasingly significant for several reasons. First, it unpacks how globalization has led to an unprecedented level of interconnectedness between nations, resulting in a need for increased understanding of how governance frameworks, migration patterns, and international relations impact security both within and between nations. Second, it shows that the movement of people across borders has become a significant challenge, with more people on the move now than at any time in human history. Third, it highlights the increasingly complex and interdependent nature of international relations, which requires a nuanced understanding of howdifferent actors, including governments, international organizations, and non-state actors, interact and influence each other. Fourth, the book addresses how security concerns have become increasingly pressing in today's world, with the rise of non-state actors, such as terrorist groups, as well as the proliferation of cyber threats. The book positions that an understanding of these dynamics, and their implications, is critical for both academics and policymakers, to build effective international partnerships and respond to global challenges such as climate change, pandemics, and economic crises. It is relevant to researchers across the social sciences, including development studies, international relations, global politics, migration, public health, and environmental policy.