In the rapidly evolving landscape of modern warfare, the integration of Artificial Intelligence and Machine Learning (AIML) with Big Data has emerged as a transformative force in defense strategies. This paper by Kate Banville explores the multifaceted applications of AIML and Big Data within military operations, highlighting their potential to enhance decision-making, improve operational efficiency, and bolster national security. By analyzing case studies and current implementations, the research underscores how data-driven insights can predict threats, optimize resource allocation, and facilitate real-time situational awareness. Furthermore, the paper addresses the ethical implications and challenges associated with the deployment of these technologies in defense, advocating for a balanced approach that prioritizes both innovation and accountability. Ultimately, this work aims to provide a comprehensive understanding of how AIML and Big Data are reshaping the future of defense, offering strategic recommendations for military leaders and policymakers.