Equipped with the M42 Duster self-propelled anti-aircraft gun, the battalions served as divisional air defense artillery units of National Guard divisions but were under the administrative control of Headquarters, 111th Air Defense Artillery Brigade.

[2][3] The majority of its personnel volunteered for full-time service at McGregor Range, administered by Fort Bliss.

Similar to a special troops battalion, its mission was to support units of the Regular Army.

The 111th Maneuver Enhancement Brigade headquarters deployed to Guantanamo Bay and Kosovo.

[12] Under the command of Colonel Jamison Herrera, it served as the headquarters for relief efforts in San Juan.