COUNTERINSURGENCYUkraine, Gaza, and the U.S. Army’s Counterinsurgency Legacy

By Gian P. Gentile

Published 4 January 2024

It makes perfect sense for American military organizations to study both the war in Ukraine and the war in Gaza, and to draw insights from both. But as the U.S. Army studies these two wars for insights, let’s drop the “learned” from the phrase “lessons learned.” Lessons learned assumes that an insight—a “lesson”—from these current wars can also, at the same time, be “learned”—that is, incorporated into the training and strategies of another military. This is a highly problematic assumption.

The wars in Ukraine and Gaza offer a laboratory of study for military professionals, historians, and analysts. Studying a current war to help organizations understand and prepare for future conflict is not new. Future U.S. Civil War Union General George B. McClellan, for example, went to Crimea in 1855 with two fellow West Point graduates to gain insights from the Crimean War for application to future combat. Ten years later, it was common for British army officers to spend time with the Confederate Army, so that they too might study operations in the American Civil War and apply what they had learned to their army back home.

In the same spirit, it makes perfect sense for American military organizations to study both the war in Ukraine and the war in Gaza, and to draw insights from both. 

But as the U.S. Army studies these two wars for insights, let’s drop the “learned” from the phrase “lessons learned.” Lessons learned assumes that an insight—a “lesson”—from these current wars can also, at the same time, be “learned”—that is, incorporated into the training and strategies of another military. This is a highly problematic assumption.

For the U.S. Army specifically, the lessons “learned” from previous counterinsurgency operations quickly became a kind of intellectual straitjacket during the Iraq and Afghanistan wars. There was only one perceived way to do a counterinsurgency operation correctly: which was to follow the appropriate “lessons” from history, and strictly adhere to the directives in the U.S. Army’s 2006 counterinsurgency field manual, Field Manual (FM) 3-24. This field manual was written under the supervision of General David H. Petraeus, and it came to embody the sort of intellectual straitjacket that considered any type of creative thinking about U.S. military strategy in Iraq and Afghanistan, any idea that could not be found within its pages, as a kind of heresy.  For example, the first chapter of FM 3-24 directed counterinsurgent forces in any war to view a population in one specific way: “In any situation, whatever the cause, there will be [a population that has] …an active minority for the cause [of the counterinsurgent]; a neutral or passive majority; an active minority against the cause.”