Chief Master Sgt. Matt Proietti, author of “At All Cost”, talks to Airmen about the life and heroism of Chief Master Sgt. Richard “Dick” Etchberger, Pease Air National Guard Base, N.H., June 10,2016. Etchberger was the first chief master sergeant to receive the Medal of Honor. (Air National Guard Photo by Airman 1st Class Ashlyn J. Correia)