
The 14th Flying Training Wing is a wing of the United States Air Force based out of Columbus Air Force Base, Mississippi.

The 14th Operations Group is the flying component of the 14th Flying Training Wing, assigned to the United States Air Force's Air Education and Training Command. The group is stationed at Columbus Air Force Base, Mississippi.

The 37th Flying Training Squadron is part of the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates Beechcraft T-6 Texan II II aircraft conducting flight training.

The 39th Infantry Division was an infantry formation of the Army National Guard, originally formed as the 18th Division in 1917. The division consisted of troops from Arkansas, Louisiana, and Mississippi. After training at Camp Beauregard, Louisiana, the division was deployed to France but did not see combat before the end of World War I. In July 1923 the division was re-designated as the 31st Infantry Division. The 39th Infantry Division was reactivated after World War II with troops from Louisiana and Arkansas and its headquarters in Louisiana. In 1967, the 39th Infantry Division was reorganized to become the 39th Infantry Brigade (Separate). Its headquarters was in Little Rock, Arkansas and the unit consisted entirely of troops from the Arkansas Army National Guard.

The 41st Flying Training Squadron is part of the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates Beechcraft T-6 Texan II aircraft conducting flight training.

The 42d Flying Training Squadron is an inactive United States Air Force unit, last assigned to Air Training Command at Columbus AFB, Mississippi, where it was inactivated on December 15, 1991.

The 43d Flying Training Squadron is part of the 340th Flying Training Group and is the reserve associate to the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates Raytheon T-1 Jayhawk, Beechcraft T-6 Texan II and Northrop T-38 Talon aircraft conducting flight training.

The 45th Airlift Squadron is part of the 314th Airlift Wing at Keesler Air Force Base, Mississippi. It operates Learjet C-21 aircraft training pilots for executive airlift.

The 48th Flying Training Squadron is part of the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates T-1 Jayhawk aircraft conducting flight training. The squadron is one of the oldest in the Air Force, being formed during World War I as the 48th Aero Squadron on 4 August 1917.

The 49th Fighter Training Squadron is part of the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates T-38 Talon aircraft conducting flight training.

The 50th Flying Training Squadron is part of the 14th Flying Training Wing based at Columbus Air Force Base, Mississippi. It operates Northrop T-38C Talon aircraft conducting flight training.

The 53rd Weather Reconnaissance Squadron, also known by its nickname, Hurricane Hunters, is a flying unit of the United States Air Force, and "the only Department of Defense organization still flying into tropical storms and hurricanes." Aligned under the 403rd Wing of the Air Force Reserve Command (AFRC) and based at Keesler Air Force Base, Mississippi, with ten aircraft, it flies into tropical cyclones in the Atlantic Ocean, the Caribbean Sea, the Gulf of Mexico and the Central Pacific Ocean for the specific purpose of directly measuring weather data in and around those storms. The 53rd WRS currently operates the Lockheed WC-130J aircraft as its weather data collection platform.

The 81st Training Wing is a wing of the United States Air Force and the host wing at Keesler Air Force Base, Mississippi. The 81st Training Wing has the Air Force's largest Technical Training Group and trains more than 40,000 students annually. Training includes weather, basic electronics, communications electronic systems, communications computer systems, air traffic control, airfield management, command post, air weapons control, precision measurement, education and training, financial management and comptroller, information management, manpower and personnel, radar, ground radio, and network control.

The 153d Air Refueling Squadron is a unit of the Mississippi Air National Guard 186th Air Refueling Wing located at Key Field Air National Guard Base, Mississippi. The 153d is equipped with the KC-135 Stratotanker aircraft.

The 172d Airlift Wing is a unit of the Mississippi Air National Guard, stationed at Allen C. Thompson Field Air National Guard Base, Mississippi. If activated to federal service, the Wing is gained by the United States Air Force Air Mobility Command.

The 183d Airlift Squadron is a unit of the 172d Airlift Wing of the Mississippi Air National Guard, stationed at Allen C. Thompson Field Air National Guard Base, Mississippi. If activated to federal service, the Wing is gained by the United States Air Force Air Mobility Command.

The 186th Air Refueling Wing is a unit of the Mississippi Air National Guard stationed at Meridian Regional Airport, Mississippi. The 153d Air Refueling Squadron, assigned to the Wing's 186th Operations Group, was established on 18 August 1939 as the 153d Observation Squadron, one of the 29 National Guard observation squadrons formed before World War II.

The 403d Wing is a unit of the United States Air Force assigned to the Air Force Reserve Command. It is located at Keesler Air Force Base, Mississippi and employs a military manning authorization of more than 1,400 reservists, including some 250 full-time air reserve technicians. It also controls an active duty associate airlift squadron consisting of active duty regular Air Force personnel integrated into the operations of its reserve airlift squadron.

The 492d Attack Squadron is an active United States Air Force unit. It is assigned to the 49th Operations Group, stationed at March Air Reserve Base, California. It was reactivated on 15 April 2019.

The 815th Airlift Squadron is a flying unit of the United States Air Force assigned to the Air Force Reserve Command and part of the 403d Wing at Keesler Air Force Base, Mississippi. It operates Lockheed C-130J Hercules aircraft providing global airlift.

The Mississippi Air National Guard, commonly known as the Mississippi Air Guard, is the aerial militia of the State of Mississippi, United States of America. It is, along with the Mississippi Army National Guard, an element of the Mississippi National Guard.

The Mississippi Army National Guard is the Army National Guard component of the Mississippi National Guard. It was originally formed in 1798. It is a component of the United States Army and the United States National Guard. It is managed by the Mississippi Military Department.

The Second Air Force is a USAF numbered air force responsible for conducting basic military and technical training for Air Force enlisted members and non-flying officers. In World War II the CONUS unit defended the Northwestern United States and Upper Great Plains regions and during the Cold War, was Strategic Air Command unit with strategic bombers and missiles. Elements of Second Air Force engaged in combat operations during the Korean War; Vietnam War, as well as Operation Desert Storm.

The VT-9 Tigers is one of four U.S. Navy strike jet training squadrons and one of two based at Naval Air Station Meridian in Mississippi.