Oklahoma Army National Guard

The Oklahoma Army National Guard is the Army National Guard component of the Oklahoma National Guard. The Commander-in-Chief of the Oklahoma National Guard is the Governor of Oklahoma. He appoints the State Adjutant General (TAG) who is a Major General from either Army or Air. Currently, the TAG is Brig. Gen. Thomas H. Mancino. The previous TAG was Maj. Gen. Michael Thompson.

The history of the OK ARNG SOF aviation "Lords of Darkness" is complicated. Early aviation units in the OK ARNG appear to have included the 245th Medical Company (Air Ambulance) and the 145th Aviation Company (1968), seemingly amalgamated into the 445th Aviation Company (1971); the 445th Aviation Company was reorganized as Company B, 149th Aviation Battalion (September 1978); and in May 1982, the 45th Aviation Battalion (Light Combat Helicopter) was organised as a Special Operations Forces unit. Organizational Authority #168-87 (5 August 1987) reorganized the 45th Aviation Battalion as the 1st Battalion, 245th Aviation, as of 1 October 1987. On 5 August 1987, the 245th Aviation was constituted in the Oklahoma Army National Guard, a parent regiment under the United States Army Regimental System. It was organized on 1 October 1987 to consist of the 1st Battalion (Special Operations) (Airborne) at Sperry. The 1st Battalion relocated to Tulsa on 1 July 1989. In 1986-87 there was a struggle by the OK ARNG to be accepted as a Special Operations Aviation team member by Army Special Operations Command at Fort Bragg and the active Army's 160th Special Operations Aviation Regiment. It appears this process was successful since the unit flew 6,298 flying hours in 1992. However, this unit may have been deactivated in 1994.

At some point 1st Battalion, 245th Aviation (Special Operations) was reorganized into 1st Battalion (Airfield Operations), 245th Aviation. In January 2016 the unit prepared for deployment to the Middle East. Pre-deployment training was scheduled for May-June 2016 at the state training site, Camp Gruber.

Units
The Oklahoma Army National Guard consists of the following elements:
 * Joint Forces Command--Ground Component
 * 45th Infantry insignia (thunderbird).svg Troop Command
 * Headquarters, 90th Troop Command at Oklahoma City, Oklahoma
 * 120 Eng Bn DUI.png Engineer Battalion at Broken Arrow, Oklahoma
 * Headquarters and Headquarters Company
 * Company A (Forward Support Company)
 * 3120th Engineer Company
 * 2120th Engineer Company
 * 1120th Engineer Detachment
 * 120th Medical Company (Area Support)
 * US Army 345 MI Bn DUI.png Combat Sustainment Support Battalion
 * Headquarters and Headquarters Company
 * 1245th Transportation Company
 * 745th Military Police Company
 * Company A, 777th Aviation Support Battalion (Distribution), Okmulgee, Oklahoma
 * 63d Civil Support Team (WMD)
 * 145th Army Band
 * 145th Mobile Public Affairs Detachment
 * 245 Avn Rgt DUI.png Battalion, 245th Aviation Regiment
 * Headquarters and Headquarters Company
 * Company C
 * 140 Avn Rgt DUI.jpg Battalion (Security & Support), 140th Aviation Regiment
 * Company C
 * Detachment 1
 * 149 Avn Rgt DUI.png Battalion (General Support), 149th Aviation Regiment
 * Company B (CH-47)
 * Detachment 1
 * 169 Avn Rgt DUI.jpg Battalion (General Support), 169th Aviation Regiment
 * Company C
 * Detachment 1
 * 238 Avn Rgt DUI.jpg Battalion, 238th Aviation Regiment
 * Company F
 * 834 Spt Bn DUI.png Aviation Support Battalion
 * Company B
 * Medical Detachment
 * 45th Infantry insignia (thunderbird).svg Infantry Brigade Combat Team
 * 180thCAVDUI.png Squadron (RSTA), 180th Cavalry Regiment
 * 134th Infantry Regiment (Airborne) DUI.png 2nd Battalion, 134th Infantry Regiment (Airborne) (Nebraska Army National Guard)
 * 179 Inf Rgt DUI.png Battalion, 179th Infantry Regiment
 * 279INFdui.png Battalion, 279th Infantry Regiment
 * 160th FA DUI.png Battalion, 160th Field Artillery Regiment (105mm Towed)
 * 700thSPTDUI.png Brigade Support Battalion
 * 45BSTBdui.png Brigade Engineer Battalion
 * USA - 45 FAB.png Field Artillery Brigade
 * Unit Insignia of the 45th Fires Brigade of the United States Army.pnguarters and Headquarters Battery
 * 158thFADUI.png Battalion, 158th Field Artillery Regiment (HIMARS)
 * 271 Spt Bn DUI.jpg Brigade Support Battalion
 * 205th Signal Company (Network)
 * Oklahoma Regional Training Institute
 * 189thFADUI.png Battalion, 189th Field Artillery Regiment
 * 189thFADUI.png Battalion (General Support), 189th Field Artillery Regiment

The OKARNG controls the Camp Gruber Maneuver Training Center located near Braggs, Oklahoma.

History
In 2021, the Oklahoma National Guard soldiers and Airmen helped to distribute food and water to citizens affected by Hurricane Ida.

Historic units

 * 158FARegtCOA.jpg 158th Field Artillery Regiment
 * 160FARegtCOA.jpg 160th Field Artillery Regiment
 * 171FARegtCOA.png 171st Field Artillery Regiment
 * Coat of arms of the 189th Field Artillery Regiment.svg 189th Field Artillery Regiment
 * 179th InfantryCOA.png 179th Infantry Regiment
 * 180th infantrycoa.jpeg 180th Infantry Regiment