Because of my involvement with California State Guard (CSG) Army Component and Civil Air Patrol (USAF Auxiliary) I am going to break down D&C into "Army" and "Air Force" as the two entities refer to their respective branch of service. So why duplicate things unnecessarily?
When I envision D & C perfection I think of the Tomb Guards of the 3rd Infantry "Old Guard" in Washington D.C.
Changing of the Guard Inspection | YouTube Channel of The Old Guard