In the complex landscape of defense cybersecurity, AI and contextual search technologies are revolutionizing how security teams operate by offering real-time insights and reducing the burden of manual data analysis. As threats evolve to move at machine speed, traditional search and analysis methods are becoming inadequate, leading to delayed responses and increased risk. Advanced technologies like retrieval augmented generation (RAG) and natural language search are enabling systems to provide answers rather than just data, reducing alert fatigue and enhancing decision-making efficiency. The Ministry of Defence (MOD) and its partners are adopting these innovations to improve triage processes and foster more effective decision-making, demonstrating the practical application of AI in real-world defense environments. AI is positioned not as a replacement for human expertise but as an enhancement, freeing analysts to focus on strategic tasks and enabling broader participation in security operations through user-friendly interfaces like chatbots. These advancements, tested in rigorous scenarios such as NATO's Locked Shields exercise, demonstrate the potential of AI to transform defense cybersecurity by providing timely, relevant, and actionable intelligence.