On 28 November 1951, the 91st Engineer General Service Regiment was redesignated the 91st Engineer Combat Battalion, and on 14 January 1952 it was reactivated at Fort Belvoir, Virginia.
It was redesignated the 91st Engineer Battalion (Combat) on 20 May 1953.
It remained at Fort Belvoir until it was inactivated on 20 May 1971.

The 91st Engineer Battalion was reactivated at Fort Hood, Texas, on 16 October 1992, this time as part of the 1st Cavalry Division.
Parts of the battalion served in Bosnia during the Yugoslav Wars, and in 1995 deployed to Kuwait as part of Operation Intrinsic Action.
A company also served in Chad.
From January 2004 to January 2005, the 91st Engineer Battalion served in Iraq as part of Operation Iraqi Freedom, for which it was awarded a second Meritorious Unit Commendation.
The battalion was assigned an area of operations encompassing most of the Mansour District of Baghdad, including the neighborhoods of Ghazilyah, Al Shula, Al Khadra, and Al Amiriyah.
5 soldiers from the battalion were killed during combat operations.

The 91st Engineer Battalion was deactivated at Fort Hood on 8 July 2005 as a result of the transformation of the United States Army.
On 16 October 2013, it was assigned to the 1st Brigade Combat Team, 1st Cavalry Division, and activated at Fort Hood, Texas.
On 28 November 1951, the 91st Engineer General Service Regiment was redesignated the 91st Engineer Combat Battalion, and on 14 January 1952 it was reactivated at Fort Belvoir, Virginia. It was redesignated the 91st Engineer Battalion (Combat) on 20 May 1953. It remained at Fort Belvoir until it was inactivated on 20 May 1971.
The 91st Engineer Battalion was reactivated at Fort Hood, Texas, on 16 October 1992, this time as part of the 1st Cavalry Division. Parts of the battalion served in Bosnia during the Yugoslav Wars, and in 1995 deployed to Kuwait as part of Operation Intrinsic Action. A company also served in Chad. From January 2004 to January 2005, the 91st Engineer Battalion served in Iraq as part of Operation Iraqi Freedom, for which it was awarded a second Meritorious Unit Commendation. The battalion was assigned an area of operations encompassing most of the Mansour District of Baghdad, including the neighborhoods of Ghazilyah, Al Shula, Al Khadra, and Al Amiriyah. 5 soldiers from the battalion were killed during combat operations.
The 91st Engineer Battalion was deactivated at Fort Hood on 8 July 2005 as a result of the transformation of the United States Army. On 16 October 2013, it was assigned to the 1st Brigade Combat Team, 1st Cavalry Division, and activated at Fort Hood, Texas.
91st Engineer Battalion (United States)