Which document outlines the Army's core values?

The Army Blue Book is recognized as the central document that outlines the Army's core values. It serves as a foundational text allowing soldiers to understand the principles governing their conduct and expectations within the Army. This document encapsulates the essential values of loyalty, duty, respect, selfless service, honor, integrity, and personal courage, which are critical to the identity and ethos of the Army.

While other documents, such as the Army Field Manual and the Soldier Handbook, contain important information about military operations and soldier responsibilities, they do not specifically focus on explicitly stating and defining the Army's core values in a comprehensive manner. The Army Operation Regulations pertain more to operational procedures and guidelines rather than the ethical foundation of the Army. Thus, the Army Blue Book distinctly serves the purpose of not only outlining the core values but also reinforcing the importance of these values in daily military life.