What is the primary focus of the 4th Order's rules for sentries?

The primary focus of the 4th Order's rules for sentries is on the proper relief of shifts to ensure continuous security and effectiveness of the sentry duty. This aspect of the rules emphasizes the importance of ensuring that sentries are properly relieved at the end of their shift, maintaining vigilance and accountability throughout their period of duty. Properly executing this responsibility allows for an uninterrupted flow of security operations, as it ensures that each sentry is alert and ready to fulfill their duties without lapses in coverage. By focusing on the correct procedure for relief, the rules reinforce the necessity of maintaining a strong and reliable presence at all times, crucial for overall mission success.