Sergeant Major Warren enlisted in the United States Army as a Food Service Specialist, during his service he served in all aspects of food service operations. SGM Warren’s assignments include all levels from Brigade, Division, Corps and Theater staffs. His units include the 41st Field Artillery Brigade, First Calvary Division; 5/7 Air Defense Artillery, Third Armored Division, HQ US Army Europe, 266th Quartermaster Battalion; 1st Corps Support Command; V Corps, US Army Europe G-4, The Army Food Service Sergeant Major, Joint Culinary Center of Excellence, US Army Quartermaster School; United States Forces Korea 8th Army Korea G-4 Sergeant Major, FORSCOM G-4 Food Service Sergeant Major. SGM Warren served in 6 overseas assignments and two combat tours to Operation Desert Shield and Storm, and Operation Iraqi Freedom.
His military education includes all Noncommissioned Officer Education System training courses His awards and decorations include the Legion of Merit, Bronze Star Medal, eight Meritorious Service Medals, eleven Army Commendation Medals, fourteen Army Achievement Medals, ten Good Conduct Medals, Iraqi Campaign Medal, Global War on Terror Service Medal, Southwest Asia Campaign Medal, Liberation of Kuwait Medal, National Defense Service Medal with star device, Military Outstanding Volunteer Service Medal, Humanitarian Service Medal, Valorous Unit Award and the Southwest Asia Service Medal with three campaign stars.