According to General Order 11, what is especially emphasized during the nighttime?

General Order 11 emphasizes the importance of challenging individuals on or near the post, especially during nighttime. This is critical for maintaining security and ensuring that only authorized personnel are allowed access to sensitive areas. The darkness can conceal the identity of those approaching, which heightens the risk of intrusion or unauthorized actions. Therefore, sentries must be vigilant and proactive in identifying and verifying anyone nearby to prevent potential threats.

This focus on challenging individuals helps to reinforce the principle of situational awareness that is vital for any sentry, particularly at night when visibility is limited. It ensures that sentries are actively engaging with their surroundings and guarding their post effectively.