COL Jeffery K. Ludwig commissioned as a Field Artillery Officer following graduation from Officer Candidate School at Fort Benning, Georgia, Class 2-84, 27 April 1984. COL Ludwig was branch transferred from the Field Artillery to the Quartermaster Corps in June 1987. His first tour of duty was Fire Support Team Chief, A Company, 1st Battalion 52nd Infantry, 1st Armored Division, Bamberg, Germany.

His subsequent duty assignments include: Fire Direction Officer, B Battery, 2nd Battalion 78th Field Artillery; Battalion Special Weapons Officer, 2nd Battalion 78th Field Artillery; Battalion S3, 4th Forward Support Battalion, 4th Infantry Division (Mechanized), Fort Carson, Colorado; Company Commander, Alpha Company (Supply and Services), 704th Main Support Battalion; Supply and Services Staff Officer, 4th Infantry Division (Mechanized) G4; Logistics Staff Officer and Combat Developer, Concepts and Doctrine Directorate, Combined Arms Support Command, Fort Lee, Virginia; Brigade S4, 2nd Infantry Division Artillery Brigade, Camp Stanley, South Korea; Brigade S3, 23rd Quartermaster Brigade, Fort Lee, Virginia; Executive Officer, 262nd Quartermaster Battalion, Fort Lee, Virginia; Plans Officer, Quartermaster General's Command Planning Group, Fort Lee, Virginia; European Command Theater Logistics Officer, US Special Operations Command, MacDill Air Force Base, Tampa, Florida; Garrison Commander, Camp Hialeah, Pusan, Korea; Chief of the Command Planning Group, Combined Arms Support Command, Fort Lee, Virginia; Student, U.S. Army War College, Carlisle Barracks, Pennsylvania; Deputy Commander, 19th Expeditionary Support Command, Camp Henry, Taegu, South Korea; Logistics Plans – J45, Joint Forces Command, Norfolk Naval Station, Virginia.

His military education and training includes: Basic Combat Training, the Field Artillery Officer Basic Course, Quartermaster Officer Advanced Course, Airborne School, the Joint Forces Staff College, and the U.S. Army War College.

His highest military awards include: the Defense Superior Service Medal, Legion of Merit, Defense Meritorious Service Medal, Meritorious Service Medal (w/4 OLCs), Army Commendation Medal (w/2 OLCs), Joint Service Achievement Medal, National Defense Service Medal, and Army Achievement Medal (w/ OLC).