1889th Regional Support Group

The 1889th Regional Support Group is a unit of the Montana Army National Guard stationed at the Silver Bow Readiness Center, Butte, Montana since 2010. The unit deployed in 2023 in support of the Global War on Terror as part of Operation Inherent Resolve, and was awarded the Meritorious Unit Commendation for its service. On April 24, 2025, the 484th MP Company held a ceremonial patching ceremony where they changed their shoulder sleeve insignia from the 1889th Regional Support Group to the 95th Troop Command. This change reflects the company's shift to the 95th Troop Command. == Units in 2026 == 1889th Regional Support Group, in Butte Headquarters and Headquarters Company, 1889th Regional Support Group, in Butte 1st Battalion, 163rd Infantry Regiment, in Belgrade Headquarters and Headquarters Company, 1st Battalion, 163rd Infantry Regiment, in Belgrade Company A, in Billings Detachment 1, in Belgrade Company B, in Missoula Detachment 1, in Kalispell Company C, in Great Falls Company I (Forward Support), 145th Brigade Support Battalion, at Fort William Henry Harrison Detachment 1, in Livingston 1st Battalion (General Support Aviation), 189th Aviation Regiment, at Helena Army Airfield Headquarters and Headquarters Company, 1st Battalion, 189th Aviation Regiment, at Helena Army Airfield Company A (Command Aviation Company), 1st Battalion, 189th Aviation Regiment, in Billings Company B (Heavy Lift), 1st Battalion, 189th Aviation Regiment, at Reno Stead Airport (NV) (CH-47F Chinook helicopters) (Nevada Army National Guard) Detachment 1, Company B (Heavy Lift), 1st Battalion, 189th Aviation Regiment, at Helena Army Airfield Company C (MEDEVAC), 1st Battalion, 189th Aviation Regiment, at Rapid City Regional Airport (SD) (HH-60M Black Hawk) (South Dakota Army National Guard) Detachment 1, Company C (MEDEVAC), 1st Battalion, 189th Aviation Regiment, at Helena Army Airfield Company D (Aviation Unit Maintenance), 1st Battalion, 189th Aviation Regiment, at Helena Army Airfield Company E (Forward Support), 1st Battalion, 189th Aviation Regiment, at Helena Army Airfield Company F (Air Traffic Service), 1st Battalion, 189th Aviation Regiment, at Camp Ripley (MN) (Minnesota Army National Guard) Company G (MEDEVAC), 1st Battalion, 189th Aviation Regiment, at McNary Airfield (OR) (HH-60M Black Hawk) (Oregon Army National Guard) Detachment 1, Company C, 1st Battalion (Security & Support), 112th Aviation Regiment, at Helena Army Airfield (UH-72A Lakota) Detachment 7, Company B, 2nd Battalion (Fixed Wing), 245th Aviation Regiment, at Helena Army Airfield (C-12 Huron) Detachment 4, Company B (Aviation Intermediate Maintenance), 834th Aviation Support Battalion, at Helena Army Airfield Detachment 41, Operational Support Airlift Command, at Helena Army Airfield 190th Combat Sustainment Support Battalion, in Billings Headquarters and Headquarters Company, 190th Combat Sustainment Support Battalion, in Billings 143rd Military Police Detachment (Law Enforcement), in Lewistown 260th Engineer Company (Engineer Support Company), in Miles City Detachment 1, 260th Engineer Company (Engineer Support Company), in Culbertson (will close "before December 2026") Detachment 2, 260th Engineer Company (Engineer Support Company), in Billings 484th Military Police Company (General Support), in Malta Detachment 1, 484th Military Police Company (General Support), in Glasgow Detachment 2, 484th Military Police Company (General Support), in Billings 1063rd Ordnance Company (Support Maintenance), in Billings Detachment 1, in Dillon 495th Combat Sustainment Support Battalion, in Kalispell Headquarters and Headquarters Company, 495th Combat Sustainment Support Battalion, in Kalispell 103rd Public Affairs Detachment, in Helena 190th Chemical Reconnaissance Detachment, in Helena Detachment 2, 230th Engineer Company (Vertical Construction Company), in Anaconda 631st Chemical Company, in Missoula 639th Quartermaster Company (Supply), in Havre Detachment 1, in Libby Detachment 2, in Kalispell 1049th Engineer Detachment (Firefighter Tactical Group), in Helena 1050th Engineer Detachment (Firefighter Tactical Group), in Helena 1051st Engineer Detachment (Firefighter Tactical Group), in Helena 1052nd Engineer Detachment (Firefighter Tactical Group), in Helena == Operation Inherent Resolve == Since 2014, the United States, United Kingdom, and a coalition of other nations have supported the efforts of local allies to defeat ISIS in Iraq, Syria, and Libya. In 2023, the Unit was called up to support the Operation by assuming command and control over several support bases in Iraq, Syria, and Kuwait. In this role, the unit provided logistical and security coordination for coalition forces. The unit returned to the United States in 2024. == References ==