These General Orders do not merely represent a US Marine’s duties while performing sentry assignments (with which they will become very familiar with during basic training), but lay a foundation for the discipline, commitment, and honor that are represented by service in the United States Marine Corps. This is slightly different than the Navy version(mostly because ranks and titles differ between the Navy and USMC), and quite different than the Army Version.
The 11 General Orders of a Sentry
1. Take charge of this post and all government property in view.
2. Walk my post in a military manner, keeping always on the alert and observing everything that takes place within sight or hearing.
3. Report all violations of orders I am instructed to enforce.
4. To repeat all calls [from posts]more distant from the guardhouse than my own.
5. Quit my post only when properly relieved.
6.To receive, obey, and pass on to the sentry who relieves me, all orders from the Commanding Officer, Officer of the Day, Officers, and Non-Commissioned Officers of the guard only.
7. Talk to no one except in the line of duty.
8. Give the alarm in case of fire or disorder.
9. To call the Corporal of the Guard in any case not covered by instructions.
10. Salute all officers and all colors and standards not cased.
11. Be especially watchful at night and during the time for challenging, to challenge all persons on or near my post, and to allow no one to pass without proper authority