The 1st Assault Helicopter Battalion, 158th Aviation Regiment, nicknamed the "Ghostriders", is headquartered at Conroe, Texas.

The battalion flies UH-60 Black Hawks as part of the United States Army Reserve's 11th Theater Aviation Command.

It was inactivated 16 October 1986 at Fort Campbell, Kentucky and relieved from assignment to the 101st Airborne Division (air assault).

As of mid-2001, a detachment from Foxtrot Company, 159th Aviation Regiment, was deployed to Camp Able Sentry, Macedonia, in support of KFOR and Operation Joint Guardian.

It was inactivated on 30 September 1981 at Fort Campbell, Kentucky, and relieved from assignment to the 101st Airborne Division (air assault), then redesignated on 16 September 1987 as Headquarters and Headquarters Company, 4th Battalion, 158th Aviation, relieved from allotment to the regular army, allotted to the army reserve, and activated at Fort Devens, Massachusetts (organic elements concurrently constituted and activated).

Units of the battalion were located in Giebelstadt and Wiesbaden, Germany and Aviano, Italy, and their mission included transportation of personnel and equipment.

In 1999, the 5th Battalion deployed to Albania, Macedonia, Kosovo, Bosnia, Africa, Hungary, Austria, Switzerland and other areas within Europe.

[14] 5th Battalion cased its colors at Katterbach Kaserne in June, 2015 in accordance with the Aviation Restructuring Initiative.

Company A ordered into active military service on 10 November 2008 at Victorville, California, then released and reverting to reserve status on 14 December 2009.

Company C and other elements were ordered into active federal service on 29 January 2009 at Salem, Oregon, then released and reverting to state control on 4 March 2010.

Elements ordered into active military service on 24 January 2010 at home stations and then released and reverting to reserve status on 11 March 2010.