Brigadier General Dean Ertwine has served with distinction in a variety of positions which include; Executive Officer to the Assistant Secretary of the Army (Research, Development & Acquisition), Pentagon; Commander, Fire Support Armaments Center, United States Army Armament Research, Development and Engineering Center, Picatinny Arsenal; Commander, United States Army Cold Regions Test Center, Fort Greely; Director, Materiel Testing, United States Army Dugway Proving Ground; and as Secretary of the General Staff, deputy G-3 and assistant Division Chemical Officer, 9th Infantry Division (motorized), Fort Lewis.
In October 1999, Brigadier General Ertwine assumed command of the U.S. Army Test and Evaluation Command (later renamed the U.S. Army Developmental Test Command) until his retirement from the U.S. Army in August of 2002.
Following his 30-year tenure at the US Army, Brigadier General Ertwine has served Battelle as Vice President for Army Science and Technology Business Development. He then became an Executive Director of the Maryland Business Roundtable for Education. He is now an Assistant Director for Military and Federal Affairs at the Maryland Department of Commerce.
Brigadier General Ertwine is a graduate of the U.S. Military Academy in 1972. He received his master’s in physical chemistry and doctorate in chemistry from Lehigh University.