5th Edition

Seapower A Guide for the Twenty-First Century

By Geoffrey Till Copyright 2026
438 Pages 49 B/W Illustrations
by Routledge

438 Pages 49 B/W Illustrations
by Routledge

438 Pages 49 B/W Illustrations
by Routledge

This is the 5th, revised and updated, edition of Seapower: A Guide for the Twenty-First Century . The sea has always provided the basis for mankind's prosperity and security. With the emergence of an increasingly globalised world trading system in the early part of the 21st century, this became ever more obvious. Contemporary conditions have therefore required navies to adapt and to expand the... Read more

Chapter 1: Maritime Strategy: A Quick Introduction  Chapter 2: Grey Zone Operations as Maritime Strategy  Chapter 3: Why the Sea Matters  Chapter 4: A Maritime Predisposition  Chapter 5: Naval and Economic Power  Chapter 6: Navies in a De-Globalising World? Alternative Futures  Chapter 7: Who Said What and Why it Matters  Chapter 8: Navies and Technology  Chapter 9: Command of the Sea and Sea Control  Chapter 10: Securing Sea Control  Chapter 11: Exploiting Sea Control: The Control of Maritime Communications  Chapter 12: Exploiting Sea Control: Operations from the Sea and Expeditionary Operations  Chapter 13: Exploiting Sea Control: Stabilisation Operations  Chapter 14: Maritime Security: An Introduction  Chapter 15: Delivering Maritime Security  Chapter 16: Naval Diplomacy  Chapter 17: Only Connect

                                     

Biography

Geoffrey Till is Emeritus Professor of Maritime Studies at King’s College London, holds the S. Rajaratnam Chair of Strategic Studies at the RSIS in Singapore and is a Senior non-resident Research Fellow at the US Naval War College. He is author of nearly 400 books, chapters and articles. His recent publications include Recovering Naval Power (with John Hattendorf, 2023) and How to Grow a Navy (2022).

Reviews of previous editions:

'A definitive study of the role of seapower, past, present and future.' -- Parliamentary Maritime Review

‘A landmark work ... Till's excellent book will dominate maritime reading lists for years to come.’ Colin S. Gray, RUSI Journal

"A tour de force, a milestone work and essential professional reading." - Ship's Telegraph (Ministry of Defence)

"In all, Seapower is very probably the best single work on sea power and maritime strategy to have been published for many years." - Journal of the Australian Naval Institute

"If you happen to be teaching a course on sea power, it would be the perfect basic text." - USNI Proceedings

"A comprehensive look at the political and military significance of the oceans in the new century…has much to offer students and the general public as well." - The Mariner’s Mirror

"Seapower: A Guide for the Twenty-First Century is without doubt the best single publication on power in the maritime domain and naval strategy in general. It will remain a standard text book for those teaching naval strategy for many years to come. The book is a must read" Abel Esterhuyse, Scientia Militaria

Review of Fifth Edition:

'The breadth and depth of Till’s knowledge and analytical ability are ably demonstrated in this new edition of Seapower. ... Seapower provides an intellectually stimulating and most valuable study of maritime strategy.  It is essential reading and most highly recommended.' - James Bosbotinis,The Naval Review, March 2026