Which command is primarily used to bring a unit to attention during close order drill?

The command primarily used to bring a unit to attention during close order drill is the Attention command. This command is specifically designed to signal the service members to assume the position of attention, which is a posture of readiness. When executed correctly, the command conveys the importance of discipline, focus, and readiness from the unit. It is essential for maintaining order and ensuring that all personnel are aligned properly for subsequent movements or commands.

In the context of close order drill, the Attention command sets the standard for other commands that follow, ensuring that the unit exhibits proper military bearing and is prepared to execute further instructions. It serves as a foundational element in developing discipline and cohesion within the ranks.