Olive green aiguillettes are worn with the combat uniform in very special circumstances, such as ceremonies and inspections. Otherwise, aiguillettes are not worn with the combat uniform. A special red aiguillette is worn by the adjutants to the commanding officers of the Horse Grenadiers Regiment (the presidential guard) and the Military Academy. Also, a red aiguillette is worn on the left shoulder by the senior NCO of each Army unit. A thinner, yellow aiguillette is worn on the right shoulder by NCOs who have completed the instructor course.