=48.= If a sentinel calls: "The guard," the commander of the guard will at once send a patrol to the sentinel's post. If the danger be great, in which case the sentinel will discharge his piece, the patrol will be as strong as possible. =49.= When practicable, there should always be an officer or noncommissioned officer and two privates of the guard at the guardhouse in addition to the sentinels there on post. =50.= Between reveille and retreat, when the guard has been turned out for any person entitled to the compliment (see pars. 222 and 224), the commander of the guard, if an officer, will receive the report of the sergeant, returning the salute of the latter with the right hand. He will then draw his saber and place himself two paces in front of the center of the guard. When the person for whom the guard has been turned out approaches he faces his guard and commands: 1. =Present=, 2. =ARMS=; faces to the front and salutes. When his salute is acknowledged he resumes the carry, faces about, and commands: 1. =Order=, 2. =ARMS=; and faces to the front. If it be an officer entitled to inspect the guard, after saluting and before bringing his guard to an order, the officer of the guard reports: "=Sir, all present or accounted for="; or "=Sir, (so-and-so) is absent="; or, if the roll call has been omitted: "=Sir, the guard is formed=," except that at guard mounting the commanders of the guards present their guards and salute without making any report. Between retreat and reveille the commander of the guard salutes and reports, but does not bring the guard to a present. =51.= To those entitled to have the guard turned out but not entitled to inspect it no report will be made; nor will a report be made to any officer unless he halts in front of the guard. =52.= When a guard commanded by a noncommissioned officer is turned out as a compliment or for inspection the noncommissioned officer, standing at a right shoulder on the right of the right guide, commands: 1. =Present=, 2. =ARMS.= He then executes the rifle salute. If a report be also required, he will, after saluting and before bringing his guard to an order, report as prescribed for the officer of the guard. (Par. 50.) =53.= When a guard is in line, not under inspection, and commanded by an officer; the commander of the guard salutes his regimental, battalion, and company commander by bringing the guard to attention and saluting in person. For all other officers, excepting those entitled to the compliment from a guard (par. 224), the commander of the guard salutes in person, but does not bring the guard to attention. When commanded by a noncommissioned officer, the guard is brought to attention in either case, and the noncommissioned officer salutes. The commander of a guard exchanges salutes with the commanders of all other bodies of troops; the guard is brought to attention during the exchange.