Why this book, and why now? Because quantum technologies will redefine how military power is understood long before they are seen on every platform. This book enables officers to grasp the concepts—what do qubits, entanglement, and quantum security really mean and then shows precisely how those ideas translate into various defence scenarios for the Army, Navy and Air Force. This book addresses senior, middle, and junior officers across the defence forces, offering a common language to connect science with strategy.

Each chapter deconstructs one core concept in clear, non-technical terms, followed by curated use cases that mirror real-use cases. Quantum-safe communications are explained through the lens of authenticating orders across contested networks; quantum-aided navigation and precision timing are linked to keeping formation and legal time-stamping when GNSS is unreliable; quantum-enhanced sensing is illustrated by detecting stealth corridors, spoofed traffic, and subsea threats; and quantum-informed computing is made tangible by planning examples that compare classic and quantum-inspired approaches. Side-by-side diagrams, short analogies, and quick reference summaries allow readers to correlate the “why” of quantum mechanics with the “how” of military applications.

The aim is to understand before deployment and recognize what the quantum advantages are for various scenarios across battlefields. Officers will learn concepts and indicators to map “quantum readiness,” and pathways to align emerging capabilities with doctrine, training, and coalition standards without needing to be engineers. The next competitive edge lies in securing trust, timing, and truth. This book is the bridge between first principles and practical relevance, helping every officer connect the dots from classroom concepts to credible-use cases in the field.

Atul Tripathi is a distinguished technology leader in the field of AI, Quantum, Cyber security with over 22 years in the Prime Minister`s Office, Industry and R&D. His career includes high-impact roles AI and Big Data Consultant to the Prime Minister’s Office (NSCS) where he contributed immensely to technology and policy development for National Security and continues to shape India`s emerging tech landscape.

He teaches Quantum Technology at the Indian Navy’s Naval War College, Goa, and is an AI and Quantum expert advisor  to premier institutions —IISER Mohali and IIIT Allahabad, and is an Executive Fellow at Woxsen University. He also serves as an AI Consultant to the Coalition for Disaster Resilient Infrastructure (CDRI) (Prime Minister’s Office). He has designed and contributed to the Master`s course in Quantum Tech for IIIT Allahabad and the National Quantum Mission.

He is a visiting faculty teaching at various IIT’s, IIM’s, IIIT’s, IIPA, CBI Academy, and numerous universities and various other government agencies. An accomplished author with two books (translated into Chinese and Korean) a regular contributor to Times of India, Economic Times, Hindu, Indian Naval Despatch, Banking Frontiers and more  writing on AI, quantum computing, and Cybersecurity—translating complex science into strategy, doctrine, and actionable roadmaps for India`s military, banking and strategic communities.

Cmde Manish Sinha (Retd.) is a Missiles and Gunnery specialist and was commissioned into the Indian Navy’s Executive Branch in 1992. He has commanded CGS C-01, Betwa and Ajay, and served as Executive Officer on board Abhay and Shivalik. He has held Operations, Foreign Cooperation and Instructional appointments at HQ IDS, NHQ, HQWNC, DSSC, Wellington and was a member of the first Indian Military Training Team (IMTT) at the Command and Staff College (CSC), Tanzania. His last appointment prior to superannuating from the Indian Navy in July 2025, was Executive Director of India’s premier maritime think tank, the National Maritime Foundation (NMF).