The Army family welcomed the 23rd Secretary of the Army Mark T. Esper Friday, Jan. 5, 2017 at Joint Base Myer-Henderson Hall, Virginia. (Photo Credit: U.S. Army photo)

Secretary of Defense James N. Mattis officially welcomed back Army Secretary Dr. Mark T. Esper into the service that raised him during a swearing-in ceremony held in the Pentagon Friday, Jan. 5, 2017. (Photo Credit: U.S. Army photo)