Which of the following is NOT one of the core values of the U.S. Army?

The core values of the U.S. Army are designed to guide the behavior and decision-making of soldiers. The recognized core values are Loyalty, Duty, Respect, Selfless Service, Honor, Integrity, and Personal Courage.

Honor, Loyalty, and Integrity are all explicitly defined as core values within the U.S. Army's ethical framework. These values underscore the importance of maintaining a strong moral compass, demonstrating allegiance to the nation and fellow soldiers, and upholding the Army's standards of conduct.

Compassion, while a valuable trait and often seen as part of the broader ethos of the Army, is not listed as one of the official core values. It reflects an admirable quality in soldiers but does not hold the same foundational status as the other values mentioned. Thus, selecting 'Compassion' as not being one of the core values is correct because it does not appear in the formal list that outlines the Army's core guiding principles.