Originally published 01/22/2013
Mr. Nagl, a retired Army officer, is the author of "Learning to Eat Soup With a Knife" and helped write "The U.S. Army/Marine Corps Counterinsurgency Field Manual."In 2003, I deployed to Anbar Province in Iraq with my armored battalion to conduct counterinsurgency operations. I had spent nearly a decade studying the subject academically, and my reading had convinced me that counterinsurgency was the hardest kind of war, much more intellectually and emotionally difficult than the tank warfare I had seen in Iraq in 1991. Even so, I was unprepared for the blind-man's-bluff challenge of fighting an enemy I could rarely see. I would have been on firmer ground if I had read Max Boot's "Invisible Armies" before I had deployed to Iraq. The prolific journalist and military historian has taken on no less a task than presenting the "epic history of guerrilla warfare from ancient times to the present."...