Water-energy-food nexus is a research field and academic concept that examines the complex, interconnected interdependencies among water, energy, and food systems. It investigates the interactions, trade-offs, and synergies inherent in managing these critical resources, recognizing that actions within one sector significantly impact the others. This integrated, systemic approach is significant for addressing resource security challenges, promoting sustainable development, and informing holistic governance and policy-making in the context of global environmental and socio-economic changes.