What is the 11th General Order of the Marine Corps?

The 11th General Order of the Marine Corps states, "To challenge all persons on or near my post without proper authority." This order emphasizes the responsibility of Marines to maintain security and ensure that only authorized personnel are allowed access to specific areas. This is crucial for safeguarding sensitive locations and protecting fellow Marines, as well as the overall mission integrity. Challenging individuals helps prevent unauthorized entry and ensures that all personnel are accounted for, which is a fundamental aspect of watch-standing and maintaining situational awareness.

The other options, while they reflect important duties that Marines may have, do not correspond to the specific wording of the 11th General Order. Reporting incidents and keeping areas tidy are essential functions but fall under broader responsibilities rather than this particular order. Ensuring all Marines perform their duties is vital for unit effectiveness, yet it does not relate directly to the specific action outlined in the 11th General Order. Thus, the correct answer reflects a very specific action that is critical in military operations and security protocols.