[4][5] Edmonson attended Frostburg State University in Maryland, where he was introduced to the Army R.O.T.C during a visit to play college football.

[4] Edmonson also holds an associate's degree in business administration from Burlington County College,[6] a Master of Science Administration in information resource management from Central Michigan University and a Master of Science in national security strategy from the National Defense University.

[4][5] He began his military career in 1991 as a Rifle Platoon Leader in the 101st Airborne Division at Fort Campbell, Kentucky.

He commanded the 63rd Expeditionary Signal Battalion and served as a Senior Military Advisor to the Minister of Interior (Sustainment) in Kabul, Afghanistan during Operation Enduring Freedom.

[7] In 2018, Edmonson became Deputy Chief of Staff, CIO/G-6, U.S. Army Forces Command at Fort Liberty in North Carolina.