A Study on Improving the Military’s Level-Based Information-Sharing Framework in National Disaster Response : Focusing on the Utilization of the Disaster Safety Communication Network (PS-LTE)

Abstract

This exploratory policy study examines what information must be shared for joint risk assessment when the military participates in national disaster response and proposes a level-based information-sharing arrangement that accounts for both military security and multi-agency cooperation. The Disaster Safety Communication Network(PS-LTE) is treated as an existing operational tool rather than the primary object of study. The study combines literature review, analysis of publicly documented cases, and policy-document analysis, comparing the 2022 KAAV-fire service joint rescue during Typhoon Hinnamnor, the 2025 Yeongnam wildfire response, and the 2021 COVID-19 vaccine transport support operation. Information needs inferred from the publicly documented missions and inter-agency relationships were organized into field-safety information and response-coordination information, while internal military information was treated as protected information outside the scope of external sharing. Building on an analytic framework set out prior to the case analysis, information sharing was organized into three tentative levels: internal military judgment and selection of releasable information(Level 1), direct field cooperation(Level 2), and multi-agency common situation sharing (Level 3). Existing PS-LTE functions, including common talk groups and voice, image, and video transmission, may support these levels. The study proposes disaster-specific information lists, function-oriented descriptions of military support, pre-defined talk-group activation criteria, clarified liaison duties, standardized common situation-board items, and joint exercises that measure information transmission and follow-up actions. The proposal does not call for a new organization or communication system; it seeks to improve the use of existing military command, disaster-management, and PS-LTE arrangements.