Final answer:
The Navy Department Board of Decorations and Medals (NDBDM) was established in 1935 by the Secretary of the Navy (SECNAV) to provide assistance in matters related to Navy decorations and medals.
Step-by-step explanation:
The Navy Department Board of Decorations and Medals (NDBDM) was established in 1935 by the Secretary of the Navy (SECNAV) to provide assistance in all matters of policy, procedure, and administration concerning Navy decorations and medals. It was created to ensure that the process of awarding and recognizing military personnel for their accomplishments and bravery follows a consistent set of standards and guidelines.