What is the Bezel ring of the compass used for?

The Bezel ring of a compass is specifically designed to enhance navigation by allowing users to set a course bearing. It can be rotated to align with the compass needle, which helps users reference and maintain a specific azimuth while navigating. This feature is particularly useful for land navigation at night, as it allows for quick adjustments to the bearing without needing to look directly at the compass needle each time.

In nighttime conditions, visibility is limited, so having the ability to easily manage headings using the Bezel ring aids in keeping on course. Therefore, its primary role is facilitating angular measurements that are essential for navigating effectively, especially in low-light situations. This is why the answer regarding land navigation at night is the most accurate in relation to the function of the Bezel ring.