[1767]. The sentinels at the post of the guard will warn the commander of the approach of any armed body and of the presence in the vicinity of all suspicious or disorderly persons. (207)
[1768]. In case of fire or disorder in sight or hearing, the sentinel at the guardhouse will call the corporal of the guard and report the facts to him. (208)
Countersigns and Paroles
[1769]. Seventy-seventh Article of War. Any person subject to military law makes known the parole or countersign to any person not entitled to receive it according to the rules and discipline of war, or gives a parole or countersign different from that which he received, shall, if the offense be committed in time of war, suffer death or such other punishment as a court-martial may direct. (See [Par. 1732].) (209)
[1770]. The countersign is a word given daily from the principal headquarters of a command to aid guards and sentinels in identifying persons who may be authorized to pass at night.
It is given to such persons as may be authorized to pass and repass sentinels' posts during the night, and to officers, noncommissioned officers, and sentinels of the guard. (210)
[1771]. The parole is a word used as a check on the countersign in order to obtain more accurate identification of persons. It is imparted only to those who are entitled to inspect guards and to commanders of guards.
The parole or countersign, or both, are sent sealed in the form of an order to those entitled to them. (211)
[1772]. When the commander of the guard demands the parole, he will advance and receive it as the corporal receives the countersign. (See [Par. 1695].) (212)