Colonel Frederick Aikens was commissioned a Medical Corps Branch Officer upon graduation from Officer Candidate School Class #501-76, 27 July 1976. His first duty assignment was as Medical Platoon Leader, Detachment 1, Headquarters and Headquarters Company, 1st Battalion 120th Infantry, North Carolina National Guard, Wilmington, North Carolina. | His subsequent duty assignments include: Medical Platoon Leader & Commander, Detachment 1, HHC 1st Battalion 120th Infantry, Wilmington, North Carolina; Support Platoon Leader, 1st Battalion 120th Infantry, Wilmington, North Carolina; Platoon Leader & Commander, Detachment 1, Company C, 1st Battalion 120th Infantry, Warsaw, North Carolina; Executive Officer, Company C, 1st Battalion 120th Infantry, Smithfield, North Carolina; Commander, Company C, 1st Battalion 120th Infantry, Smithfield, North Carolina; Action Officer (30 day Pentagon tour), National Guard Bureau, Washington, D.C.; Assistant S-2 (Intelligence), 30th Infantry Brigade, Clinton, North Carolina; S-3 (Operations & Training) 1st Battalion 120th Infantry, Wilmington, North Carolina; Commander, Headquarters State Area Command, Raleigh, North Carolina; Assistant S-3, 30th Infantry Brigade, Clinton, North Carolina; Commander, 1st Battalion 120th Infantry, Wilmington, North Carolina; Chief of Staff/Executive Officer, 30th Heavy Separate Brigade (Enhanced), Clinton, North Carolina; Operations Officer/Executive Officer, 139th Support Detachment (Rear Operations Center) XVII Airborne Corps, Morrisville, North Carolina; Commander/G3 Rear, 139th Support Detachment (Rear Operations Center) XVII Airborne Corps, Morrissville, North Carolina; Deputy Director of Operations, G3/Commander, 139th Rear Operations Center, Headquarters XVIII Airborne Corps (Active Duty), Fort Bragg, North Carolina; Director of Operations, G3/Commander, 139th Rear Operations Center, Headquarters XVIII Airborne Corps (Active Duty), Fort Bragg, North Carolina; Commander, 139th Rear Operations Center, Headquarters XVIII Airborne Corps (Active Duty), Fort Bragg, North Carolina; Commander, 139th Rear Operations Center Headquarters XVIII Airborne Corps, Fort Bragg, North Carolina until demobilization of the unit on 7 November 2002.