MARINE CORPS AIR STATION YUMA, Ariz. -- U.S. Marine Corps 1stSgt. Melisa Y. Cancienne, the Marine Corps Air Station (MCAS) Yuma Headquarters and Headquarters Squadron 1stSgt., is pinned during her frocking ceremony at MCAS Yuma, Ariz., June 3, 2019. Traditionally, a 1stSgt. serves as the senior enlisted advisor to the commander of a company, but in H&HS's case the 1stSgt Cancienne will be the senior enlisted advisor to the commander of the squadron. (U.S. Marine Corps photo by Lance Cpl. John Hall)