What action must a commander take for soldier demotions?

For soldier demotions, the commander must submit a recommendation through the appropriate channels with justifications. This process ensures that there is a formal and documented procedure when addressing a demotion, which involves several levels of command and oversight. Proper documentation and justification are crucial as they provide the rationale for the decision and help protect the rights of the individual involved. This helps maintain transparency within the chain of command and ensures that the decision is aligned with Army regulations and policies.

Other options do not align with the formal processes required for demotion actions. Direct communication with the affected soldier, while important for transparency, does not replace the need for an official recommendation. Posting the decision publicly on a bulletin board lacks the confidentiality and respect due to the individual. Notifying the soldier's family is not a necessary step in the actual demotion process and could potentially violate privacy if not handled appropriately. Overall, the requirement for a formal recommendation and justification solidifies the integrity and legality of the demotion process.