This research analyzes the transformation of climate change as a threat multiplier that shifts national security paradigms from conventional to non-conventional frameworks. Utilizing a literature review approach, this study comparatively evaluates NATO’s alliance-based securitization model, which focuses on military decarbonization, alongside India’s model, which prioritizes human security and national development. The literature mapping reveals strong substantive linkages among securitization, military issues, and environmental management within global defense policy dynamics. Findings indicate that NATO prioritizes operational energy efficiency and green defense infrastructure, whereas India emphasizes practical operational adaptation in extreme terrains and disaster preparedness. Consequently, as a strategic implication, Indonesia should adopt a balanced middle ground through civilian-led defense "climatization". Key recommendations include developing a Green Defense Roadmap integrated with national energy transition goals and strengthening Humanitarian Assistance and Disaster Relief (HADR) diplomacy to enhance national resilience against climate-induced threats while maintaining primary combat capabilities.
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