- Published: 28 September 2025
- ISBN: 9780241744031
- Imprint: Viking Non Fiction
- Format: Hardback
- Pages: 288
- RRP: $49.99
War and Power
Who Wins Wars — and Why

















- Published: 28 September 2025
- ISBN: 9780241744031
- Imprint: Viking Non Fiction
- Format: Hardback
- Pages: 288
- RRP: $49.99
Phillips O’Brien is the rare historian who has something trenchant to say to students of contemporary warfare. As he points out in this important book, the character of war evolves, but some of the underlying truths, particularly from the second World War, are still very much with us.
Eliot Cohen, Professor Emeritus at Johns Hopkins SAIS
Phillips O'Brien is one of the keenest observers of modern strategy, and his new book takes a deep historical look at the evolution of warfare and its implications for conflicts like the ongoing one in Ukraine.
Francis Fukuyama, author of The End of History and the Last Man
A really interesting book
Paul Krugman, Distinguished Professor of Economics
Phillips O'Brien is always fantastic. Heterodox. He's pretty scathing, even about Biden administration policy . . . A really interesting book
Paul Krugman, Distinguished Professor of Economics
As wars rage across the world, Phillips O’Brien offers powerful insights into the past, present, and future of war and power. This book is vital reading for anyone grappling with America’s uncertain place in today’s global order.
Alexander Vindman, New York Times–bestselling author of The Folly of Realism