Private is the lowest military rank, first recorded in mid-1700s. Corporal leads smallest Army units, first recorded around 1570-80. Sergeant oversees teams up to four soldiers, first recorded 1150-1200
US Army has 470,519 workforce as of October 2022. Army ranks divided into 13 enlisted and 11 commissioned officer categories
Private is the entry-level rank, responsible for basic infantry skills. Lance Corporal assists Privates and leads small teams. Corporal manages small groups and mentors subordinates. Sergeant leads platoons and provides professional development. Staff Sergeant oversees training and discipline within units
Adjutant assists commanding officer with unit administration and human resources. Term comes from Latin "adiutāns" meaning "to help"
"Comes" originally meant "companion" or "follower" in Roman. Title was used as epithet for heroes or gods in ancient Rome. Emperor Constantine I declared himself "comes" to Sol Invictus
Born in 1962 to military family in San Antonio, Texas. Graduated from Texas Tech University with civil engineering degree in 1984. Earned master's degree in aeronautical science from Embry-Riddle in 1994