He served as a general officer in the United States Army directing the Defense Logistics Agency until July 8, 2020.

He currently oversees the Logistics Commodities and Services Transformation Program on behalf of the United Kingdom's Ministry of Defence as a Leidos Vice President and managing director.

His post graduate education includes: Master's degree in Military Arts and Sciences from the School of Advanced Military Studies of the United States Army Command and General Staff College, Fort Leavenworth, Kansas; Master's degree in National Security and Strategic Studies (Distinguished Graduate) from the National War College, Fort McNair, Washington D.C.; and master's degree in Business Management (Logistics) from the Pennsylvania State University, State College, PA in 1991.

His prior assignments include: Deputy Chief of Staff, U.S. Army Materiel Command (AMC), Redstone Arsenal, Alabama; Commander, Defense Logistics Agency (DLA) Land and Maritime in Columbus, Ohio; Director of Logistics, Engineering and Security Assistance, J-4, Headquarters, United States Pacific Command (USPACOM), Hawaii; Executive Officer to the Army Deputy Chief of Staff, G-4 (Army G-4); Brigade Commander, 3d Sustainment Brigade, Fort Stewart, Georgia; and Deputy C-4, Coalition Forces Land Component Command (CFLCC), Camp Arifjan, Kuwait during Operations Enduring (OEF), Iraqi Freedom (OIF).

This article incorporates public domain material from MAJOR GENERAL DARRELL K. WILLIAMS.