Knife Fights: A Memoir of Modern War in Theory and Practice Hardcover – October 16, 2014

Library Journal:
“An honest and informative glimpse into both the past and the future of the ongoing war on terror. Military buffs, policy wonks, and anyone wishing to learn more about America’s role in the world should find Nagl’s work an alluring and important read.”

Kirkus Reviews:
“A lively memoir that combines battlefield experiences with military politics…A thoughtful, lucid, not-terribly-optimistic autobiography of a scholarly soldier.”

Publishers Weekly:
“Nagl writes evocatively about his wartime experiences, clearly explaining his theories of waging asymmetric warfare. A critic of the Iraq war ('a war that did not need to be fought'), Nagl offers perceptive critiques of the serious mistakes made by Secretary of Defense Donald Rumsfeld and the military’s general officer corps… Nagl makes a strong case that the next war the U.S. engages in will require stronger counterinsurgency planning than Pentagon policy makers currently anticipate.”

Booklist:
“An essential addition to military history collections.”

General David H. Petraeus, U.S. Army (Ret.), commander of the surge in Iraq:
"A wonderfully readable and strikingly forthright memoir by a brilliant Army officer turned think tank leader who achieved an exceptional record on the battlefield, in the academic arena, in a high-powered job in the Pentagon, and as one of the so-called 'insurgents' who helped transform the way the U.S. military thought about, prepared for, and conducted the wars of the post-9/11 era."

General Jim Mattis, U.S. Marines (Ret.):
"John Nagl's illuminating journey as a combat Soldier-Leader-Thinker provides a refreshing perspective of the changing character of today's security challenges. To those searching for a relevant and historically grounded understanding of today's erupting realities, his book is uniquely enlightening."

Admiral James Stavridis (Ret.), Supreme Allied Commander at NATO 2009-2013 and current Dean of The Fletcher School at Tufts University:
"In Knife Fights, John Nagl takes the reader from the halls of the Pentagon to the deserts of Iraq and Afghanistan, and illuminates the modern battlefields - both in Washington and overseas - in harsh and vivid light. His work on counterinsurgency is deep and profound, and this book is the essential back story both of the intellectual process that underpins it and the personal journey that formed it. A powerful and meaningful memoir that will resonate in today's Army and tomorrow's society."

Peter R. Mansoor, Colonel, U.S. Army (Ret.); author, Surge: My Journey with General David Petraeus and the Remaking of the Iraq War:
"A magnificent memoir from one of the most brilliant officers of his generation. Knife Fights details John Nagl's journey from the halls of West Point and Oxford to the battlefields of Desert Storm and Operation Iraqi Freedom, as well as his struggles and triumphs among Washington's power elite. Highly recommended for those who seek to understand how the Army overcame its initial dysfunction to wage the messy counterinsurgency wars in Iraq and Afghanistan."

F. G. Hoffman, National Defense University, Washington DC:
"There are many books from veterans of America's costly wars in Iraq and Afghanistan. Few will combine the intellectual heft, emotional power, and exemplary moral courage of John Nagl's Knife Fights. It traces the development of the author from his early days as a cadet at West Point to the darkest days of fighting in Al Anbar province in Iraq and beyond. This book will stand on its own special shelf as a personal memoir of a soldier/scholar, a warrior and a great teacher. Highly recommended for all military students, and anyone interested in the journey of an institutional insurgent and patriot who followed his own path."

Robert D. Kaplan:
"Brimming with poignancy and integrity, John Nagl's book is an instant classic of America's decade of war in the Greater Middle East. Its core argument, moreover, is undeniable: that insurgency and counterinsurgency have been part of the history of war since antiquity and thus will be part of its future. May the United States Army and Marine Corps hold close the lessons of this book!"

David E. Johnson, senior researcher at the RAND Corporation; inaugural director of the Chief of Staff of the Army Strategic Studies Group; author of Fast Tanks and Heavy Bombers: Innovation in the U.S. Army, 1917-1945, Hard Fighting: Israel in Lebanon and Gaza, and The 2008 Battle of Sadr City: Reimagining Urban Combat:
"John Nagl's Knife Fights is a brave book by a soldier - scholar who has always put himself out there for the right reasons. John's remarkable memoir is a directed telescope into how the U.S. Army changed its doctrinal paradigm for the first time since World War I from 'closing with and destroying the enemy' to 'protecting the population.' Readers will also see that he was a key intellectual force in this shift and how difficult these changes are for the institutions - and for the catalytic advocates like John."

Peter Maass, author of Love Thy Neighbor:
"John Nagl has written an exceptional book that shows in words the type of bravery he exhibited on the battlefield. Nagl deftly reveals what worked and didn't work in Washington, Iraq and Afghanistan after 9/11. His critique of Donald Rumsfeld is uniquely powerful because he writes from the vantage point of an Army officer who waged war in the Sunni Triangle and afterwards served in the defense secretary's office. Knife Fights is essential reading - the rare memoir of war that integrates ideas, combat and politics. It is an invaluable addition to the literature of wars that we are still trying to comprehend."

John A. Nagl is a retired lieutenant colonel of the U.S. Army. A graduate of West Point and a Rhodes Scholar, he received his Ph.D. from St. Antony’s College, Oxford, where he wrote his thesis on counterinsurgency in Malaya and Vietnam. Nagl served as the military assistant to deputy secretaries of Defense Paul Wolfowitz and Gordon England, where he coauthored the U.S. Army and Marine Corps counterinsurgency field manual with generals David Petraeus and James M. Mattis. He is the former president of the Center for a New American Security and the ninth headmaster of the Haverford School in Pennsylvania.