Modern military satellite communications have become too complex, dynamic, and contested to manage by human operators alone. Cognitive SATCOM: AI-Enabled Resilience for Modern Battlefields explores how artificial intelligence can transform today's increasingly software-defined SATCOM systems into adaptive, resilient communications enterprises capable of responding at machine speed. Blending SATCOM engineering with machine learning, autonomous control, and systems thinking, the book examines AI-driven threat detection, adaptive waveforms, intelligent resource allocation, multi-agent coordination, and resilient network management-while confronting the practical constraints that determine whether these technologies can actually be fielded. From spacecraft power and processing limits to verification, delegated authority, acquisition, and operational deployment, it provides a technically grounded roadmap for engineers, program managers, defense technologists, and policy leaders shaping the next generation of military communications.