When deployed, what is the location for box 2?

The correct choice emphasizes the importance of the unit commander's location as it pertains to deployment procedures. In a deployed environment, having accurate and immediate contact information for the unit commander is crucial for coordination and responsibility regarding substance abuse prevention efforts. The unit commander is pivotal in ensuring compliance with regulations and overseeing the welfare of the troops, including the management of their well-being concerning substance use.

Having the unit commander's address in box 2 allows for efficient communication and ensures that directives from leadership can be effectively transmitted to the appropriate personnel, which is vital for maintaining the readiness and health of the unit. This reinforces the command structure and accountability necessary during deployments.