Which General Order discusses the need to repeat calls from distant posts?

The 4th General Order is focused on the requirement for sentries to repeat calls from posts that are a distance away from their position. This practice is essential for maintaining effective communication and ensuring that any important messages or orders are conveyed accurately. When a sentry repeats calls, it helps to confirm the information being transmitted and acts as a safeguard against misunderstandings that might arise due to distance or interference. This thoroughness supports operational security and helps maintain the chain of command. Hence, adhering to this order is critical for effective military communication and coordination, making the 4th General Order the appropriate choice in this context.