Smart borders and digital corridors for ensuring security in NATO-oriented border areas: the Romania–Moldova–Ukraine case

Objectives of the study: This paper examines how smart border concepts and digital corridor architectures can enhance border security, regional resilience, and sustainable mobility in the Romania–Moldova–Ukraine border region. It aims to demonstrate how geospatial and data interoperability standards aligned with NATO norms and the EU INSPIRE directive enable harmonized spatial data management supporting both defense and civilian applications. Prior Research: The paper builds on recent European initiatives in smart border management and geospatial data integration, including the EU Smart Borders package, INSPIRE implementation experiences, and NATO geospatial standards (NGMS, DIGEST). The study builds on previous work on geospatial interoperability and the application of digital twins in cross-border management. Methodology: A comparative case study method was used, combining spatial data analysis, policy review, and system architecture assessment. The study is based on publicly available datasets, defense geospatial frameworks, and documentation from pilot projects in the Danube region and the Eastern Partnership. Findings: The findings demonstrate that harmonized GIS infrastructures and cyber-resilient data exchange platforms can significantly improve situational awareness, operational coordination, and logistical efficiency. Digital corridors connecting border control nodes and regional transport infrastructure facilitate dual-use (military-civilian) mobility, enhance emergency response, and enable integrated monitoring of flows between jurisdictions. The analysis also places the Romania–Moldova–Ukraine corridor in the context of the broader Three Seas Initiative, highlighting its role in connecting the transport, energy, and digital networks of Central and Eastern Europe, as well as in enhancing the interoperability of NATO and EU infrastructures. Conclusions and Significance: The study offers practical recommendations for policymakers, defense planners, and regional authorities seeking to implement interoperable and secure border management systems compliant with NATO and EU standards. Scientific Value: The paper presents a strategic model for smart border management that integrates defense preparedness and sustainable development. It demonstrates how geospatial harmonization and digital interoperability can transform border regions into resilient, data-driven security and mobility ecosystems.