Abstract: The world is today than ever before fixated on the subject of development, which is taken as a Change process necessitating modifications in the societies of developing and developed nations. Consequently, the purpose of this research was to examine the role of military diplomacy in the advancement of foreign policy aspirations in Africa using Kenya-South Africa relations as a case study, with a particular emphasis on challenges and prospects. The study employed Institutional theory, which can be traced back to foundational articles discussing how organizational founding and change were influenced less by functional considerations and more by symbolic actions and external influences. International Relations (IR) practitioners, government agencies, diplomats, Kenya Defence Forces, National Intelligence Service, academia, media, journalists, envoys, and other specialists comprised the target audience. The primary data was collected via an open-ended and closed-ended questionnaire, whereas the secondary data was gathered via articles, journals, periodicals, and books. According to this study, the contribution of the military varies from state to state and over time based on a variety of factors.