Question: Which public/military international airport is the home of the 120th Airlift Wing of the Montana Air National?
Context: The 105th Airlift Squadron (105 AS) is a unit of the Tennessee Air National Guard 118th Wing (118 WG).  It is assigned to Berry Field Air National Guard Base, Nashville, Tennessee and was previously equipped with the C-130H Hercules aircraft.  It has since transitioned to the MQ-9 Reaper, with its parent organization, the former 118th Airlift Wing (118 AW), having recently been redesignated as the 118th Wing.  The 105th will likely be redesignated as either an attack squadron or a reconnaissance squadron in the near future. Great Falls International Airport (IATA: GTF, ICAO: KGTF, FAA LID: GTF) is a public/military airport in city limits three miles southwest of central Great Falls in Cascade County, Montana. Stewart Air National Guard Base is the home of the 105th Airlift Wing (105 AW), an Air Mobility Command (AMC)-gained unit of the New York Air National Guard and "host" wing for the installation.  The former Stewart Air Force Base is also known as Newburgh-Stewart IAP and Stewart International Airport, while the military portion of this now-joint civil-military airport is known as Stewart Air National Guard Base (Stewart ANGB).  The base is named in honor of 19th-century Scottish-born sea captain, Lachlan Stewart, and his son, who donated the land it now occupies. The Advanced Airlift Tactics Training Center, (AATTC), is located at Rosecrans Air National Guard Base, Saint Joseph, Missouri.  The host unit is the 139th Airlift Wing, Missouri Air National Guard.  The AATTC was founded in 1984 but has its roots in the efforts of the technicians, AGR's and members of the 180th Airlift Squadron and other ANG airlift units prior to that date. On 26 March 2003, during Operation Iraqi Freedom, C-17s of the 62d Airlift Wing, 315th Airlift Wing, 437th Airlift Wing, and 446th Airlift Wing dropped SETAF's 173rd Airborne Brigade into Northern Iraq.  996 paratroopers jumped into Bashur Airfield.  The operation forced the Iraqi Army to maintain approximately six divisions in the area to protect its northern flank, providing strategic relief for Coalition Forces advancing on Baghdad from the south.  Bashur Airfield is located in Central Iraq approximately 356 kilometers North of Baghdad, 50 kilometers Northeast of Erbil.  The airbase is served by a single 6,700 foot long runway.  Bashur appears to be a small civilian airport. The 158th Airlift Squadron (158 AS) is a unit of the Georgia Air National Guard's 165th Airlift Wing (165 AW) located at Savannah Air National Guard Base, Georgia.  The 158th is equipped with the C-130H Hercules and is operationally-gained by the Air Mobility Command (AMC). The 374th Airlift Wing is a unit of the United States Air Force assigned to Fifth Air Force.  It is stationed at Yokota Air Base, Japan.  It is part of Pacific Air Forces.  The 374th Airlift Wing is the only airlift wing in PACAF and provides airlift support to all Department of Defense agencies in the Pacific theater of operation.  It also provides transport for people and equipment throughout the Kantō Plain and the Tokyo metropolitan area. The 120th Airlift Wing (120 AW) is a unit of the Montana Air National Guard, stationed at Great Falls Air National Guard Base at Great Falls International Airport, Montana.  If activated to federal service, the Wing is gained by the United States Air Force Air Mobility Command. The 186th Airlift Squadron (186 AS) is a unit of the Montana Air National Guard 120th Airlift Wing located at Great Falls Air National Guard Base, Montana.  The 186th is equipped with the C-130H Hercules. The Romanian Air Force 90th Airlift Base ("Baza 90 Transport Aerian") is located at the Henri Coandă International Airport, near Bucharest.  In 1949, the 49th Transport Group was the first unit to be settled at Otopeni airfield.  Later, in 1971, a special squadron was commissioned here and after few years this squadron became the 50th Airlift Wing.  On March 1, 1990, by gathering together these two units, the 90th Airlift Base was officially formed.
Answer: Great Falls International Airport