Aaron R. Dean II (born May 20, 1964) is a retired United States Armybrigadier general (BG) and the former adjutant general (TAG) of the District of Columbia National Guard (DCNG). As the TAG for the DCNG, Dean was responsible for providing personnel support to both Army and Air National Guard components. Dean acted as the auxiliary support to the commanding general of the DCNG, while concurrently carrying out many responsibilities associated with the District of Columbia's constitution and directives. In addition to this, he was responsible for managing the assets of the entire DCNG.
On the left, key leadership from the Jamaica State Partnership Program, and centered is MAJ Jason Hanslovan, bilateral affairs officer, DCNG, and BG Dean on the right. The three share a laugh while on board the U.S. Coast Guard Cutter Resolute in Kingston, Jamaica, March 19, 2018. (Photo by SPC Kevin Valentine, DCNG, 715th PAD ).
Dean joined the DCNG in 1985. His first assignment as a commander came in 1989, with the 274th Military Police company. In the earlier part of 1991, the DCNG was mobilized along with other National Guard units in order to participate in the Persian gulf conflict. Captain (CPT) Dean, during that time period, along with other unit commanders within the DCNG, prepared many troops to participate in the battle to liberate Kuwait. This conflict occurred due to Iraq's refusal to respond to the United Nations (UN) deadline.
Dean continued to serve within the DCNG after the Persian gulf conflict. He was later assigned to serve as the commander for other units within the DCNG. Many of his other assignments are listed within the military assignments section on this page.
Dean supports numerous events and programs, such as -residential inaugurations, the DCNG Warrant Officer's 100-year history celebration event and critical partnerships, such as the Jamaica Defense Force and the Jamaica State Partnership Program. Dean was second in charge during the DC National Guard response to the January 6th Insurrection.
Secretary of the Army Mark T. Esper attends and speaks at the 2018 D.C. National Guard Military Ball, Washington, D.C., May 5, 2018. From left: Major General (MG) William J. Walker, Esper, and BG Aaron R. Dean II.MG William J. Walker and BG Aaron R. Dean II at Dean's promotion ceremony, November 9, 2017, on the DCNG drill floor.
He retired in March 2024.
Military assignments
2018–2024: The Adjutant General, DCNG, Washington, DC
2017–2018: Commander, Headquarters and Headquarters Detachment, Area Mobilization Command, Washington, District of Columbia
2017–2017: Commander, Land Component Command (Acting), DCNG, Washington, DC
2015–2017: Chief of Staff, DC Army National Guard, Washington, DC
2014–2015: G3, Deputy Chief of Staff for Operations, DCNG, Washington, DC
2013–2014: Director of Plans Operations and Training (J3), JFHQ-DC, DCNG, Washington, DC
During his civilian service, BG Dean, served as the director of the Enrollment Division for Blue Cross and Blue Shield of the National Capital Area in Washington, D.C. The company is responsible for ensuring over 2 million people in the region.
Dean also served on the school board, as the treasurer, for the Imagine Hope Public Charter School, located in D.C., during 2016-2017. He is currently a member of Kappa Alpha Psi fraternity.