The Missouri National Guard (MONG), commonly known as the Missouri Guard, is a component of the Army National Guard and Missouri State Department of the National Guard. It is composed of Army and Air National Guard units. The department office is located in Jefferson City.

The state mission of the Missouri National Guard is "to provide trained and disciplined forces for domestic emergencies or as otherwise required by state law under the authority of the governor".

History During the American Civil War, Missouri units fought for both Union and Confederate causes. The Confederate 1st Missouri Infantry Regiment, later part of the 138th Infantry Regiment lineage, fought at Shiloh, Corinth, Iuka, Champion Hill, the Siege of Vicksburg, the Atlanta campaign, Franklin, and Nashville, among other engagements across the Western Theater.

Officially, the Missouri National Guard traces its lineage to the Missouri State Militia, created in 1861 to counter Confederate guerrillas during the American Civil War.

Missouri volunteers fought at the Battles of Embudo Pass and Taos and participated in the occupation of Chihuahua City during the Mexican-American War.

The Missouri Army National Guard was formally organized in 1877. It was first mobilized in the Spanish–American War (1898), raising six volunteer infantry regiments, though none deployed overseas.

In 1916, Missouri Guardsmen were sent to the U.S.–Mexico border at Laredo, Texas during the Mexican Punitive Expedition.

During World War I, Missouri units of the 35th Infantry Division fought in the Lorraine and Alsace sectors and in the Meuse–Argonne Offensive, including the Battles of Cheppy, Vauquois, and Charpentry.

In World War II, the Guard trained in the Louisiana Maneuvers before deploying to both the Pacific and European theaters. In the Pacific, Missouri units served in the Aleutian Islands campaign, mainly the 138th Infantry Regiment while other units fought at Leyte and Okinawa, mainly the 110th Engineer Regiment. After the war's end, the unit was sent to perform occupation duty in Seoul, Korea. In Europe, the 35th Infantry Division fought in the Invasion of Normandy and the Northern France, Rhineland, Ardennes-Alsace, and Central Europe campaigns.

The Missouri Air National Guard was established in 1947 and mobilized for service during the Korean War.

Throughout the Cold War stages, the Missouri Guard was mainly stationed state side and helping with Missouri duties such as the 1922 Poplar Bluff railroad strike, the 1927 St. Louis tornado, and major flooding in 1951–1952 and 1993. Although not mobilized as full units for the Vietnam War, many Missouri Air Guard pilots served on active duty in Southeast Asia.

In Operation Just Cause (1989), the 1138th Military Police Company was in Panama conducting Annual Training when eventually the invasion started, coming under fire and establishing the Empire Range EPW camp, this was the first Guard unit activated for combat since Vietnam. The same company deployed in the Gulf War, operating EPW Camp 301 in Saudi Arabia.

Since 2001, Missouri units have deployed widely in the Global War on Terror. In Iraq, the 1140th Engineer Battalion fought in the Battle of Najaf (2004), while the 35th Engineer Brigade and several MP companies conducted security and detainee operations.

In Afghanistan, the 203rd Engineer Battalion conducted IED clearance (2009–2010), and the 1st Battalion, 135th Aviation Regiment flew AH-64 Apache's and UH-60 Black Hawks (2013–2014).

The 35th Infantry Division commanded multinational forces in Bosnia (2003–2004), and the 110th MEB deployed to Kosovo (2008–2009).

More recently, the 110th MEB deployed to Qatar (2017), the 35th Combat Aviation Brigade commanded Task Force Trailblazer in Iraq and Syria (2018–2019), and the 1st Battalion, 138th Infantry Regiment deployed to Kuwait and Syria (2023–2024), where Guardsmen engaged in combat and received Combat Infantryman Badges.

In June 2025, the Missouri Air National Guard's 131st Bomb Wing, flying B-2 Spirit bombers from Whiteman AFB, participated in Operation Midnight Hammer, U.S. strikes on Iranian nuclear facilities at Fordow, Natanz, and Isfahan. The mission involved over 125 aircraft and the use of GBU-57 Massive Ordnance Penetrators, and was the largest B-2 strike in U.S. history.

On November 8, 2022, Missouri voters approved Amendment 5, establishing the Missouri Department of the National Guard as a cabinet-level agency independent of the Department of Public Safety. Missouri also briefly maintained a State Defense Force (2012–2022) for stateside support missions.

Organization Direct reporting unitsComponentLocation of headquarters Missouri Joint Force HeadquartersArmy and Air National GuardJefferson City 110th Maneuver Enhancement BrigadeArmy National GuardKansas City Combat Aviation Brigade, 35th Infantry Division Army National Guard Sedalia 35th Military Police BrigadeArmy National GuardJefferson Barracks 35th Engineer Brigade Army National Guard Fort Leonard Wood 35th Infantry DivisionArmy National GuardLexington 1107th Theater Aviation Support GroupArmy National GuardSpringfield 70th Troop Command Army National Guard Lebanon 131st Bomb Wing Air National Guard Whiteman Air Force Base 139th Airlift Wing Air National Guard Rosecrans Memorial AirportMissouri Army National Guard Support ElementsArmy and Air National GuardVaries

Missouri Army National Guard Joint Force Headquarters-Missouri, Army Element, in Jefferson City Headquarters and Headquarters Detachment, Joint Force Headquarters-Missouri, Army Element, in Jefferson City Missouri Recruiting & Retention Battalion, in Jefferson City Detachment 1, Missouri Recruiting & Retention Battalion, in St. Joseph Detachment 2, Missouri Recruiting & Retention Battalion, in Kansas City Detachment 3, Missouri Recruiting & Retention Battalion, in Clinton Detachment 4, Missouri Recruiting & Retention Battalion, in Springfield Detachment 5, Missouri Recruiting & Retention Battalion, in Cape Girardeau Detachment 6, Missouri Recruiting & Retention Battalion, in Jefferson City Detachment 7, Missouri Recruiting & Retention Battalion, in Festus Detachment 8, Missouri Recruiting & Retention Battalion, in Macon Detachment 9, Missouri Recruiting & Retention Battalion (Guard Officer Leadership Development) at Southeast Missouri State University, in Cape Girardeau Detachment 10, Missouri Recruiting & Retention Battalion (Guard Officer Leadership Development) at Missouri Southern State University, in Joplin Detachment 11, Missouri Recruiting & Retention Battalion (Guard Officer Leadership Development) at Northwest Missouri State University, in Maryville Detachment 12, Missouri Recruiting & Retention Battalion (Guard Officer Leadership Development) at William Woods University, in Fulton Detachment 13, Missouri Recruiting & Retention Battalion, in Bridgeton Detachment 14, Missouri Recruiting & Retention Battalion, in Carthage Missouri Medical Detachment, in Jefferson City Detachment 1, Missouri Medical Detachment, in Neosho 429th Judge Advocate General Trial Defense Team, in Jefferson City Detachment 1, 429th Judge Advocate General Trial Defense Team, in Lincoln (NE) — (Nebraska Army National Guard) 529th Judge Advocate General Detachment, in Jefferson City Camp Crowder Training Center, in Neosho Army Aviation Support Facility #1, at Whiteman Air Force Base Army Aviation Support Facility #2, at Forney Field at Fort Leonard Wood Army Aviation Support Facility #3, at Springfield Airport Army Aviation Support Facility #4, at Jefferson City Airport Combined Support Maintenance Shop #1, in Jefferson City Field Maintenance Shop #1, in Raytown Field Maintenance Shop #2, in Festus Field Maintenance Shop #3, in Cape Girardeau Field Maintenance Shop #4, in Poplar Bluff Field Maintenance Shop #5, at Fort Leonard Wood Field Maintenance Shop #6, in St. Joseph Field Maintenance Shop #7, in Marshall Field Maintenance Shop #8, in Macon Field Maintenance Shop #10, in Lambert Field Maintenance Shop #11, in Springfield Field Maintenance Shop #12, in Harrisonville Field Maintenance Shop #13, in Neosho Field Maintenance Shop #14, in Trenton Field Maintenance Shop #15, in Nevada 35th Infantry Division, at Fort Leavenworth (KS) — (Kansas Army National Guard) Headquarters and Headquarters Battalion, 35th Infantry Division, at Fort Leavenworth (KS) — (Kansas Army National Guard) Headquarters Support Company, 35th Infantry Division, at Fort Leavenworth (KS) — (Kansas Army National Guard) Detachment 1, Headquarters Support Company, 35th Infantry Division, in Lexington Company A (Operations), Headquarters and Headquarters Battalion, 35th Infantry Division, at Fort Leavenworth (KS) — (Kansas Army National Guard) Detachment 1, Company A (Operations), Headquarters and Headquarters Battalion, 35th Infantry Division, in St. Joseph Company B (Intelligence and Sustainment), Headquarters and Headquarters Battalion, 35th Infantry Division, at Jefferson Barracks Detachment 1, Company B (Intelligence and Sustainment), Headquarters and Headquarters Battalion, 35th Infantry Division, at Fort Leavenworth (KS) — (Kansas Army National Guard) Detachment 2, Company B (Intelligence and Sustainment), Headquarters and Headquarters Battalion, 35th Infantry Division, in St. Joseph Company C (Signal), Headquarters and Headquarters Battalion, 35th Infantry Division, in St. Joseph 35th Infantry Division Band, in Olathe (KS) — (Kansas Army National Guard) 35th Combat Aviation Brigade, in Sedalia Headquarters and Headquarters Company, 35th Combat Aviation Brigade, in Sedalia Detachment 2, Company G (MEDEVAC), 3rd Battalion (General Support Aviation), 238th Aviation Regiment, at Springfield Airport Detachment 6, Company D (AVUM), 3rd Battalion (General Support Aviation), 238th Aviation Regiment, at Springfield Airport (MO) Detachment 7, Company E (Forward Support), 3rd Battalion (General Support Aviation), 238th Aviation Regiment, at Springfield Airport Detachment 2, Company C, 2nd Battalion (Fixed Wing), 245th Aviation Regiment, at Jefferson City Airport 1st Battalion (Assault), 108th Aviation Regiment, at Topeka Airport (KS) — (Kansas Army National Guard) 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base Headquarters and Headquarters Company, 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base Detachment 1, Headquarters and Headquarters Company, 1st Battalion (Assault), 135th Aviation Regiment, at Johnstown–Cambria County Airport (PA) — (Pennsylvania Army National Guard) Company A, 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base (UH-60M Black Hawk) Company B, 1st Battalion (Assault), 135th Aviation Regiment, at Fort Leonard Wood (UH-60M Black Hawk) Company C, 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base (UH-60M Black Hawk) Detachment 1, Company C, 1st Battalion (Assault), 135th Aviation Regiment, at Johnstown–Cambria County Airport (PA) (UH-60M Black Hawk) — (Pennsylvania Army National Guard) Company D (AVUM), 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base Detachment 1, Company D (AVUM), 1st Battalion (Assault), 135th Aviation Regiment, at Johnstown–Cambria County Airport (PA) — (Pennsylvania Army National Guard) Company E (Forward Support), 1st Battalion (Assault), 135th Aviation Regiment, at Whiteman Air Force Base Detachment 1, Company E (Forward Support), 1st Battalion (Assault), 135th Aviation Regiment, at Johnstown–Cambria County Airport (PA) — (Pennsylvania Army National Guard) 2nd Battalion (General Support Aviation), 211th Aviation Regiment, at South Valley Airport (UT) — (Utah Army National Guard) 1st Battalion (Security & Support), 376th Aviation Regiment, at Central Nebraska Airport (NE) — (Nebraska Army National Guard)