Signals that the adjutant is about to form the guard, battalion, or brigade.  The bugler plays the bugle part of the call.

Signals troops to assemble at a designated place.

Signals all personnel not authorized to be absent to their quarters for the night.

"Church Call" announces that services are about to begin.

Sound as a warning to turn out for drill.

Fatigue summons those who are to report for some type of work activity. Because it is rarely heard, its message might not be recognized unless your troop knows it well.

"Fire" is an alarm that signals danger. This call is unique and will get almost anyone's attention.

Sound as a warning that personnel will prepare to assemble for a formation.

Signals mealtime.

Signals duties or drills to cease.

Signals the end of the official day.

Signals the troops to awaken for morning roll call.  Used to accompany the raising of the National Colors.

"Swimming" signals the start of the swimming period.

Signals that unauthorized lights are to be extinguished.  This is the last call of the day.  The call is also sounded at the completion of a military funeral ceremony.

To the Color is a bugle call to render honors to the nation.  It is used when no band is available to render honors, or in ceremonies requiring honors to the nation more than once.  To the Color commands all the same courtesies as the National Anthem.

Signals that the First Sergeant is about to form the company.

Sound as a warning that the guard is about to be assembled for guard mount.

Signals personnel to assemble for the distribution of mail.

Signals all officers to assemble at a designated place.

Signals all troops needing medical attention to report to the dispensary.

Signals that all light in squad rooms be extinguished and that all loud talking and other disturbances be discontinued within 15 minutes.