Public trust is essential for credible and consistent state security policy, defense operations, and communications. In the twenty-first cen-tury, the social context of security has expanded significantly, necessitating that society acquire credible and up-to-date security knowledge. This arti-cle examines the relationship between the UN Sustainable Development Goals (SDGs) and national security actors within the rule-of-law frame-work, focusing on how the trust factor influences goal fulfilment. The study uses a normative analysis of sustainable development goals, emphasizing the social pillar and its connections to national security institutions. It high-lights the importance of continuous, trust-based communication between the public and social partners, reflecting transparency and accountability. The integration of sustainability into national security strategies—particu-larly concerning climate change and energy security—is explored through the strategies of NATO member states. The article also discusses the mu-tual reinforcement between social stability, economic stability, and na-tional security, emphasizing that achieving the SDGs enhances national se-curity, and vice versa. This comprehensive approach fosters effective, long-term solutions by integrating the SDGs into the national security frame-work, ultimately promoting social trust and stability.