What was the original purpose of reveille in military practice?

The original purpose of reveille in military practice was to function as a signal to wake soldiers or sailors to duty. This practice dates back to historical military settings where clear communication was essential for maintaining order and discipline. Reveille served as the official wake-up call, often accompanied by music or a bugle, to help soldiers rise at a consistent time each day, enabling them to prepare for the day's activities, including drills, formations, or inspections. Establishing a routine was vital in military life, and reveille played a key role in fostering that structure.

While a morning call to arms or a signal to begin morning drills are related activities, those occur after personnel have already been awakened and are in the process of preparing for their duties. Similarly, a signal for evening retreat pertains to a different part of the daily routine, signaling the end of the day's activities rather than the start, thereby distinguishing it from the primary function of reveille.