Lieutenant General Roy Earl Beauchamp was commissioned as a Quartermaster Officer upon graduation as the Distinguished Military Graduate (DMG) from Quartermaster Officer Candidate School Class 3-67 at Fort Lee, Virginia, 9 February 1967. Later in 1969, he would branch transfer to the Ordnance Corps. He reported to his first duty assignment as S-1, 85th Maintenance Battalion, Hanau, Germany.

His subsequent duty assignments include: Company Commander, HQ and A Company, 85th Maintenance Battalion, Hanau, Germany; Company Commander, 536th Heavy Equipment Maintenance Company, Vietnam; Chief, Equipment Management Division, Tank Automotive Command, Warren, Michigan; Commander, Lima Army Modification Center, Lima Ohio; Chief of Automotive, Armaments, Combat Vehicles, and Communications-electronics Division, 19th Support Command, Taegu, Korea; Log Staff Officer, Deputy Chief of Staff for Logistics, US Army Forces Command, Fort McPherson, Georgia; Executive Officer, Deputy Chief of Staff, Logistics, US Army Forces Command, Fort McPherson, Georgia; Logistics Staff Officer, Deputy Chief of Staff for Logistics, Department of the Army, Pentagon, Washington, D.C.; Commander, 2nd Forward Support Battalion (FSB) 3rd Infantry Division, Wuerzburg, Germany; Assistant Chief of Staff, Materiel 2nd Support Command, Nellingen, Germany; Colonel Assignments Officer, US Army Personnel Command, Alexandria, Virginia; Commander, Eagle Support Brigade, 101st Airborne Division, Fort Campbell, Kentucky; Commander, 101st Support Group, 1st Log Command, Saudi Arabia/Iraq; Executive Officer, Deputy Chief of Staff for Logistics, Department of the Army, Pentagon, Washington, D.C.; Commander, Defense Industrial Supply Center, Philadelphia, Pennsylvania; Deputy Chief of Staff for Research, Development, and Acquisition, US Army Materiel Command, Alexandria, Virginia; Commanding General, US Army Tank-Automotive and Armaments Command, Warren, Michigan; Director of Logistics and Security Assistance, J-4/7, US Central Command MacDill Air Force Base, Florida; Special Assistant to the Commanding General, Army Materiel Command, Alexandria, Virginia; Deputy Commanding General, US Army Materiel Command, Alexandria, Virginia.

His military education and training consist of: Quartermaster Officer Candidate School, Ordnance Officer Advanced Course, Army Installation Management Course, Command and General Staff College, Supply Management Officer Course, Industrial College of the Armed Forces, General Officer Capstone Course, and Air Assault School.

COL Beauchamp's military awards and decorations include: Defense Distinguished Service Medal, Army Distinguished Service Medal (w/OLC), Defense Superior Service Medal, Legion of Merit (w/4 OLC), Bronze Star Medal, Meritorious Service Medal (w/ Silver OLC), Army Commendation Medal (w/OLC), Army Good Conduct Medal, Army General Staff ID Badge, and the Air Assault Badge.