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The U.S. Army/Marine Corps Counterinsurgency Field Manual

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When the U.S. military invaded Iraq, it  lacked a common understanding of the problems inherent in counterinsurgency campaigns. It had neither studied them, nor developed doctrine and tactics to deal with them. It is fair to say that in 2003, most Army officers knew more about the U.S. Civil War than they did about counterinsurgency.

The U.S. Army / Marine Corps Counterinsurgency Field Manual was written to fill that void. The result of unprecedented collaboration among top U.S. military experts, scholars, and practitioners in the field, the manual espouses an approach to combat that emphasizes constant adaptation and learning, the importance of decentralized decision-making, the need to understand local politics and customs, and the key role of intelligence in winning the support of the population. The manual also emphasizes the paradoxical and often counterintuitive nature of counterinsurgency operations: sometimes the more you protect your forces, the less secure you are; sometimes the more force you use, the less effective it is; sometimes doing nothing is the best reaction. 

An new introduction by Sarah Sewall, director of the Carr Center for Human Rights Policy at Harvard’s Kennedy School of Government, places the manual in critical and historical perspective, explaining the significance and potential impact of this revolutionary challenge to conventional U.S. military doctrine.

An attempt by our military to redefine itself in the aftermath of 9/11 and the new world of international terrorism, The U.S. Army / Marine Corps Counterinsurgency Field Manual will play a vital role in American military campaigns for years to come.
 
The University of Chicago Press will donate a portion of the proceeds from this book to the Fisher House Foundation, a private-public partnership that supports the families of America’s injured servicemen. To learn more about the Fisher House Foundation, visit www.fisherhouse.org.
 

472 pages, Paperback

First published January 1, 2006

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U.S. Department of the Army

11.8k books134 followers
The Department of the Army (DA) is one of the three military departments within the Department of Defense of the United States of America. The Department of the Army is the Federal Government agency within which the United States Army is organized, and it is led by the Secretary of the Army who has statutory authority 10 U.S.C. § 3013 to conduct its affairs and to prescribe regulations for its government, subject to the limits of the law, and the directions of the Secretary of Defense and the President.

The Secretary of the Army is a civilian official appointed by the President and confirmed by the Senate. The highest-ranking military officer in the department is the Chief of Staff of the Army, who is also a member of the Joint Chiefs of Staff. Other senior officials of the Department are the Under Secretary of the Army (principal deputy to the Secretary) and the Vice Chief of Staff of the Army (principal deputy to the Chief of Staff.)

The Department of War was originally formed in 1789 as an Executive Department of the United States, and was renamed by the National Security Act of 1947 to the Department of the Army on September 18, 1947. By amendments to the National Security Act of 1947 in 1949, the Department of the Army was transformed to its present-day status.

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Displaying 1 - 30 of 34 reviews
Profile Image for Steven Peterson.
Author 19 books324 followers
October 12, 2009
The context for this important work (John Nagl's Foreword, Page xiii): ". . .the sad fact is that when an insurgency began in Iraq in the late summer of 2003, the Army was unprepared to fight it." In the "Introduction," Sarah Sewall observes the critical point of counterinsurgency (COIN) (Page xxiii):

". . .although it is military doctrine, the field manual emphasizes the multiple dimensions of COIN: `those military, paramilitary, political, economic, psychological, and civic actions taken by a government to defeat an insurgency.'" Traditional US COIN policy was unwisely military only--ignoring the many other dimensions.

Obviously, one of the most arresting features of this volume is one of its authors--General David Petraeus. At the outset, this book emphasizes the competitive learning struggle between insurgent and counterinsurgent. The manual says that (Page lii) ". . .the side that learns faster and adapts more rapidly--the better learning organization--usually wins."

The first chapter explores insurgency and counterinsurgency, concluding with a series of lessons for governments as they "take on" an insurgency. Page 51 features a Table outlining successful operational practices (e.g., emphasize intelligence, isolate insurgents from the population, protect key infrastructure, provide amnesty for those willing to support the new government) and those that are not normally successful (e.g., overemphasizing killing and capturing the enemy as opposed to engaging the populace as a whole, ignore peacetime processes, including legal procedures). The first chapter also features a number of pithy points that might seem counterintuitive (e.g., "if a tactic works this week, it might not work next week"; "sometime doing nothing is the best reaction").

Other key chapters focus on the need to have unity between civilian and military activities (counterinsurgency fails if it is carried out as a military approach only), the requirement for good intelligence, leadership and ethics in counterinsurgency.

Some of the more interesting aspects of this book are located in the several appendices. One focuses on the support of linguists in COIN; intriguing, too, is a section on legal considerations in COIN.

For some readers, this might be uncomfortable reading, given its focus on warfare. On the other hand, COIN is a reality and a method for combating insurgencies. The book is pretty well written; for the most part, it is also clearly written. It is fascinating to see the author rise in the ranks, partly as a result of his perspective as laid out in this work.
37 reviews8 followers
May 3, 2025
Beautifully written for anyone

I wanted to read it for my international relations study. It has covered all the aspects related to COIN and military strategy.
Profile Image for Jennifer.
16 reviews
June 11, 2010
Did this really work out for us? Really?
135 reviews
June 28, 2018
My 16th of 78 books on Gen. Mattis’ reading list. I read Kilcullens Counterinsurgency before this, realizing now I should have read this first as this is for leaders and planners at the battalion level and above, while Kilcullen addresses at the small unit level. I thought the section on Social Network Analysis was the most noteworthy.
7 reviews
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August 11, 2025
A fascinating look into the self-image of global counterterrorist and anticommunist occupation. You could desrcibe its ideology as "managerial imperialism". Also extremely funny which words it feels the need to define in depth; it implies the authors or editors expected many of the target readers to not understand terms like "culture" and "society" in any meaningful theoretical sense.
Profile Image for Drew DeYoung.
69 reviews
July 11, 2021
This is by military for military. If you want dry doctrine and procedure from some of the world’s leading experts in the field, this is for you.
That being said, if you’re not in the field yourself, this might be a slow and frustrating read.
54 reviews
August 30, 2021
Dry at times but many good lessons within. Felt it was best read in segments and reflected on
Profile Image for Dhruv.
114 reviews14 followers
July 31, 2022
Questionable if it actually worked, but worth a look just for the historical value to the last two decades.
Profile Image for Anthony.
75 reviews4 followers
January 7, 2012
A must read for anyone in the military or any civilian trying to understand the complexities of counterinsurgency. I enjoyed the introductions from well respected military and non-military experts on this topic. These quickly seek to introduce a new way of thinking and analysing an old tactic of war in the modern era. The chapters referencing the paradoxes of counterinsurgency warfare are the most useful and each interesting bullet makes the reader really think about the problems at hand and how to approach the myriad of situations which occur on the battlefield.

I liked the focus of this manual centering on winning the support of the population and not merely killing the insurgents. The military is needed for security so that economic development can take place.

The quote by JFK sums up the difficulties for a soldier operating in this type of environment when he said, "You [military professionals] must know something about strategy and tactics and...logistics, but also economics and politics and diplomacy and history. You must know everything you can know about military power, and you must also understand the limits of military power. You must understand that few of the important problems of your time...have finally solved by military power alone."

There is plenty of great advice taken from lessons learned during the recent conflicts and some from the past. This book highlights the main topics and high level strategy for counter insurgent warfare yet this should just be a gateway to other books about this topic. Anyone who is interested in American strategy in likely conflicts during the next 50 years should read this and take the lessons to heart. At the very least I think the wars in Iraq and Afghanistan have proved to politicians that military might alone is not enough to win a war and much more thought and preparation for economic stability must be considered before American soldiers are asked to occupy foreign land.
Profile Image for Shawn.
82 reviews85 followers
June 19, 2008
Fascinating sections on social network analysis but the veterans know some things can't be learned from a manual. In the back of my mind, military manuals marketed as mainstream bestsellers seems sanitized for public consumption and to avoid political fallout. FM 31-20-3 (Foreign Internal Defense Tactics) from 1994 has a more cynical and in my opinion, realistic view of occupation and guerrilla psychology. Moreover, manuals are by their very nature abstract and concepts and theories need to be backed up by past experiences. While excellent examples from history are explored in capsules and sidenotes, commanders who handle the political side would be better served by hard study of how narcs recruit informers and how mafiosi clans vie for influence.
Profile Image for Rachel Brune.
Author 33 books100 followers
August 18, 2013
I'm not sure how such a hotly contested tome was ultimately so boring ... oh wait, it's military doctrine. My purpose in reading was to be able to join informed conversation re: COIN vs NO COIN. There was good information in here, although much of it was pretty theoretical. Possibly because the successful application of COIN doctrine (I said the *SUCCESSful* application, people) is still theoretical. I am glad to have read it, as the debate continues. Like some buddies of mine and I were discussing, as long as there are insurgencies, there will still be a need for counterinsurgency, even if we're not that good at it.
Profile Image for Jared.
15 reviews
November 10, 2007
I prefer Galula's COIN (counterinsurgency) Warfare, however this manual was still interesting. It's light on specifics, but due to the nature of COIN this is to be expected, for me I found the appendices to be the most useful. If you are looking for a great introduction to COIN and something to set your framework, then this is it. If you're looking for specifics, head straight to the appendices.
Profile Image for R..
1,682 reviews51 followers
February 15, 2014
I read this about five years ago and wish that it was current enough in my memory that I could write a detailed description but alas, I cannot. I do remember that I liked it and feel like I learned a lot from reading it straight through. I would highly recommend it to anyone and I think that it's one that officers and NCOs should definitely own a copy of.
Profile Image for Archana.
95 reviews4 followers
August 23, 2007
This book is amazing, especially the many forewards and introductions (not all by military people). You will not regret reading it - opened my eyes to the change in the world happening right now, moving from traditional warfare to counterinsurgency operations...
12 reviews
April 1, 2008
If you vote, you should read this book. If you are interested in how to restructure the way we handle our military budgets, and what our current military really needs(guess what, it isn't more nuclear subs) then you should read this book.
5 reviews4 followers
July 24, 2008
David Petraeus should be listed as an author of this book, it's one of the reasons he got put in command of the Iraq War. It's not bad reading either, and well worth your time if you're interested in how the war in Iraq is being fought.
Profile Image for Ryan.
43 reviews4 followers
December 17, 2010
Important for a number of reasons, but not the panacea for counterinsurgency some think it is. Make sure to read David Kilcullen's "Counter-insurgency Redux" and Frank Hoffman's "Neo-Classical Counterinsurgency?" if studying this book.
Profile Image for SA.
1,158 reviews
March 20, 2016
The core of the thing, if you will. This became the bedrock of '08-'12 military strategy and represented one of the first contemporary field manuals of its time. There is a lot to learn here. And there is a lot to revisit, as we now have the history of the thing in implementation, too.
28 reviews1 follower
January 18, 2008
The Chicago edition is worth the price for the introduction. Understand what Pretaeus is thinking.
26 reviews2 followers
February 3, 2008
Yup, it's pretty good. Not great. Good.
60 reviews
December 6, 2008
Very slowly reading.... it's a military FM (field manual)
2 reviews1 follower
December 9, 2008
One of the better political campaign manuals for strategy and field in heavily Republican held districts.
4 reviews
January 8, 2009
Interesting view on the topic. Was curious why we are making the choice we make in Iraq and Afgan. in the GWOT. Interesting if you are interested in this type of thing.
Profile Image for Sean Rife.
15 reviews3 followers
October 6, 2012
The COIN-FM is essential reading for anyone who wants to understand what winning the current conflict entails. As a social scientist, I found its social-psychological/sociological insights profound.
Profile Image for Levi.
7 reviews
March 5, 2012
Very dry, but interesting institutional take on some universal truths.
Displaying 1 - 30 of 34 reviews

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