The youth population of a country plays a pivotal role in shaping its military strength and overall national power. Nations with a robust youth demographic possess the capacity to provide dynamic and active human resources for their armed forces, underscoring the critical need to prioritize the development of young populations and military manpower in national strategies and policies. This study aims to explore the relationship between a youthful population and national power, with an emphasis on its economic, military, political, cultural, and social dimensions. The central research question addresses how a young population influences a country’s national power across these key dimensions. Employing a descriptive-analytical methodology with a mixed-methods approach, data were collected through both fieldwork and library-based research. Qualitative analysis was conducted using Maxqda software, while quantitative data were analyzed with Smart PLS software. The study involved a sample size of 300 participants, selected through stratified random sampling. Findings reveal that the youthfulness of a population significantly affects national power, with varying levels of impact across dimensions. Political, military, economic, social, and cultural dimensions were identified in order of priority, with a total of 42 influencing indicators: 14 in the military dimension, 8 in the economic dimension, 10 in the political dimension, and 10 in the social and cultural dimensions. The results highlight the critical importance of simultaneous investments across these domains to enhance national power effectively.