Transboundary collaboration is a research area that focuses on the cooperation and coordination between different countries or regions that share common resources, environmental challenges, or social issues. This type of collaboration is essential for addressing complex problems that transcend national boundaries and require collective action. It involves the sharing of information, resources, expertise, and technology to achieve mutual goals and solve common challenges. Transboundary collaboration often involves the development of joint initiatives, agreements, and policies to promote sustainable development, environmental conservation, conflict resolution, and economic growth across borders. This research area examines the opportunities, challenges, and best practices associated with transboundary collaboration in various contexts, such as water management, biodiversity conservation, disaster risk reduction, and public health.