FM 3-24 governs doctrine for Army and Marine units countering an insurgency and provides a doctrinal foundation for counterinsurgency operations.
View FM 3-24 on armypubs.army.mil
It covers strategic and operational context, insurgency fundamentals, counterinsurgency methods, intelligence, host-nation forces, assessments, and legal considerations. It requires compliance with applicable United States, international, and host-nation laws and regulations, the law of war, and rules of engagement.
Applies to: FM 3-24/MCWP 3-33.5 applies to the United States Marine Corps, the Active Army, Army National Guard/Army National Guard of the United States, and United States Army Reserve unless otherwise stated.
Effective counterinsurgency commanders tell the truth; they refuse to give projections; and they do not promise more than can be provided. (paragraph 1-86)
The general rule for the use of force for the counterinsurgents is do not create more enemies than you eliminate with your action. (paragraph 1-89)
Assessment precedes and is integrated into every operations activity and entails two broad, enduring tasks: Continuously monitoring the current situation (including the environment as it affects friendly forces, enemy forces, and the population) and the progress of the operation. Evaluating the operation against established criteria, expected outcomes, and the desired end state. (paragraph 13-1)
The critical role of assessment necessitates establishing measures of effectiveness and performance during planning. (paragraph 12-3)
Decentralized assessments enable subordinate units to develop and measure progress locally. (paragraph 12-6)