The comprehensive defence framework introduced in 2019 in Latvia has the potential to accelerate the implementation of national defence priorities, thus strengthening Latvia as one of NATO’s external border states. In a time of geopolitical turbulence and increasing hybrid threats, a whole-of-society approach is required and work in ever-new directions. As dimensions of psychological resilience and strategic communication are becoming an important part of the defence studies debate, the study focuses on the role of the private sector within Latvia’s strategic defence documents and aims to investigate where these dimensions are situated and how they have evolved in the strategic landscape. To study the role and evolution of the private sector within Latvia’s strategic defence documents, quantitative content analysis and qualitative text analysis were used for in-depth analysis of the documents. The study finds that the role of the private sector in the strategic defence documents has generally increased over the years and there has not been a significant change regarding private sector involvement in dimensions of psychological resilience and strategic communication. The long-term pattern indicates that dimensions of psychological resilience and strategic communication appear rare in strategic documents, suggesting that the private sector is not seen as a significant actor in achieving defence goals. Meanwhile, in more practical dimensions,an upward trend towards strengthening ties and sharing responsibilities is identified. The study therefore opens up a discussion regarding the need for a more institutionalised framework for psychological and strategic communication dimensions in order to achieve the strategic goals of comprehensive defence.