Covering diverse themes such as politics, geography, sociology, communication, public administration, indigenous communities, agriculture, culture, media, and business, the chapters explore the challenges posed by migration, climate change, pandemics, digitalisation, transnational crime, and global interconnectedness. The contributors highlight the importance of regional cooperation, inclusive governance, and cross-cultural dialogue in addressing issues that transcend national boundaries. The book also discusses the ASEAN Community Agenda and its vision of a peaceful, resilient, and people-centred Southeast Asia, demonstrating how collaborative research can contribute to a deeper understanding of regional integration and sustainable development. This volume serves as a valuable reference for academics, policymakers, researchers, and students interested in cross-border studies, governance, and Southeast Asian development.