When measuring a Marine's height, which posture is required?

When measuring a Marine's height, the correct posture is standing relaxed with the arms at the sides. This position ensures that the measurement is accurate by allowing the spine to be fully extended and aligned, reflecting the true, upright height of the individual. This posture minimizes any potential distortions that could arise from variations in body positioning, such as bending or reaching.

Standing relaxed with arms at the sides helps to stabilize the upper body, thus providing a consistent and reliable reference point for height measurements. Accurate height measurements are crucial for assessing body composition and for various military standards and protocols.