Georgia Military Institute
Professional services
UnclaimedA historic Georgia military school later revived as the Georgia Army National Guard’s Officer Candidate School program.
Last updated August 25, 2026
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Overview
The Georgia Military Institute (GMI) is the name of a historic military educational institution founded in Marietta, Georgia, in 1851 and later revived for officer training in the Georgia Army National Guard. The original institute occupied approximately 110 acres and began instruction on July 1, 1851. Seven students attended at the start of classes, and enrollment reached 28 men by the end of the first year. The school provided a military-oriented education during a period when state-supported and privately operated military academies were prominent in the American South. GMI operated normally until the Civil War disrupted its activities in 1864. Its cadets were organized into two companies and sent to West Point, Georgia. Superintendent Francis W. Capers also assigned cadets to serve as drill instructors for Confederate forces, while others volunteered or were drafted. On May 14, 1864, GMI cadets participated in the Battle of Resaca, where they encountered the 9th Illinois Mounted Infantry. The cadets were removed from front-line service after that engagement. On November 15, 1864, Union troops associated with William T. Sherman’s campaign burned the vacant GMI campus. The institution was not rebuilt after the war. The postwar legacy of GMI continued through other Georgia military-education initiatives. North Georgia Agricultural College was established in Dahlonega in place of a rebuilt Marietta institute and became known as the Military College of Georgia. A separate attempt to restart GMI was made in 1891 by former cadets. That revival operated near Moreland Drive and Euclid Avenue east of Atlanta under superintendent Charles M. Neel, but financial difficulties led to its closure after its final graduating class in 1898. The name was revived again in 1961 when the Georgia Army National Guard named its Officer Candidate School after the original institute. The modern program is not a reconstruction of the nineteenth-century campus; it is an officer-commissioning curriculum carrying forward the GMI name and military-education tradition. In 2008, the revived program returned to Marietta. By January 2010, the Georgia Army National Guard had established its Officer Candidate School program at GMI at the Clay Army National Guard Center, formerly associated with Naval Air Station Dobbins, and within the 122nd Regiment Regional Training Institute. The contemporary program serves eligible Georgia Army National Guard soldiers through accelerated and traditional Officer Candidate School formats. The accelerated course is offered twice each year, while the traditional format is offered annually. Graduates receive state and federally recognized reserve officer commissions in the Georgia Army National Guard and the United States Army, respectively. The curriculum is based on the U.S. Army Officer Candidate School program associated with Fort Benning. Thus, the name Georgia Military Institute now refers both to a historic antebellum military school and to a current National Guard officer-development program rooted in that legacy.
History
Georgia Military Institute was established on July 1, 1851, in Marietta, Georgia, on a campus of approximately 110 acres. Its opening class consisted of seven students, and the institution had 28 men attending by the end of its first year. The school was organized as a military educational institution, combining academic instruction with military discipline and training. The original institute continued its regular activities until the spring of 1864, when the Civil War changed its operations. Its cadets were formed into two companies and deployed to West Point, Georgia. Superintendent Francis W. Capers directed some cadets to serve as drill instructors for Confederate forces. Other cadets volunteered for military service or were drafted. On May 14, 1864, GMI cadets took part in the Battle of Resaca and encountered the 9th Illinois Mounted Infantry. This was their only recorded engagement before they were withdrawn from front-line service. The Marietta campus was empty when Union troops burned it on November 15, 1864, during the military campaign associated with William T. Sherman. The institute was not rebuilt after the Civil War. Its educational and military legacy was partly carried forward by the founding of North Georgia Agricultural College in Dahlonega, which became known as the Military College of Georgia. A separate revival was attempted in 1891 by former GMI cadets. The institution was reopened near the intersection of Moreland Drive and Euclid Avenue east of Atlanta. Charles M. Neel, who had previously served as superintendent of the Moreland Park Military Academy, led this version of the school. Financial problems eventually forced it to close, and its last graduating class completed its studies in 1898. The GMI name was revived for a third iteration in 1961 by the Georgia Army National Guard, which applied it to an Officer Candidate School curriculum. This modern organization is a National Guard training program rather than a rebuilt version of the antebellum campus. In 2008, the revived GMI program returned to Marietta. In January 2010, the Georgia Army National Guard established its GMI Officer Candidate School program at the Clay Army National Guard Center, formerly associated with Naval Air Station Dobbins. The program operates through the 122nd Regiment Regional Training Institute and is organized as Charlie Company, 2nd Battalion, 122nd Regional Training Institute, under the 78th Troop Command. The current program offers accelerated and traditional commissioning routes for Army National Guard soldiers. The accelerated format is conducted twice each year, while the traditional format is conducted annually. Graduates receive both a state-recognized reserve commission in the Georgia Army National Guard and a federally recognized reserve commission in the United States Army. Its academic and training framework follows the U.S. Army Officer Candidate School curriculum associated with Fort Benning. The modern GMI therefore functions as a military leadership and commissioning program while preserving the historical identity of the original Georgia Military Institute.
- 2010
Officer Candidate School program established at Clay National Guard Center
[1]The Georgia Army National Guard established the GMI Officer Candidate School program at the Clay Army National Guard Center through the 122nd Regiment Regional Training Institute.
- 2008
Modern program returns to Marietta
[1]The modern GMI program returned to Marietta, reconnecting the officer-training program with the original institution’s location.
- 1961
Georgia National Guard revives the GMI name
[1]The Georgia Army National Guard named its Officer Candidate School after Georgia Military Institute.
- 1898
Second iteration closes
[1]The revived school ended operations after its final graduating class because of financial difficulties.
- 1891
Second GMI established
[1]Former cadets restarted Georgia Military Institute east of Atlanta under superintendent Charles M. Neel.
- 1864
Cadets deployed during the Civil War
[1]GMI cadets were organized into two companies and deployed to West Point, Georgia; some also served as drill instructors or entered Confederate service.
- 1864
Cadets participate in the Battle of Resaca
[1]On May 14, GMI cadets fought in the Battle of Resaca and encountered the 9th Illinois Mounted Infantry before being removed from front-line duty.
- 1864
Original campus destroyed
[1]Union troops burned the vacant GMI campus in Marietta on November 15. The original institute was never rebuilt.
- 1851
Original institute established in Marietta
[1]Georgia Military Institute opened in Marietta on July 1 on a campus of approximately 110 acres.
Products and positioning
A military leadership and officer-commissioning program that preserves the name and historical legacy of Georgia’s nineteenth-century military institute.
Military officer education · 1961
Georgia Military Institute Officer Candidate School
The contemporary GMI is an Officer Candidate School curriculum operated by the Georgia Army National Guard. It prepares eligible Army National Guard soldiers for reserve officer commissions in the Georgia National Guard and the United States Army. The program is delivered through the 122nd Regiment Regional Training Institute at the Clay Army National Guard Center in Marietta and follows the U.S. Army Officer Candidate School framework associated with Fort Benning.
Accelerated military training
Accelerated Officer Candidate School program
The accelerated GMI commissioning route is intended to complete Officer Candidate School training in an intensive format. The Georgia Army National Guard offers this format twice each year for eligible soldiers seeking a reserve officer commission.
Military officer training
Traditional Officer Candidate School program
The traditional GMI route provides a less condensed Officer Candidate School pathway for eligible Georgia Army National Guard soldiers. It is offered annually and leads to the same state and federally recognized reserve commissioning outcomes as the accelerated format.
Brand decisions
2010
Officer Candidate School reorganized at the Clay National Guard CenterStrategyBackground
The Georgia Army National Guard required a formal location and organizational structure for its GMI officer-training program.
Action taken
The Guard established the GMI Officer Candidate School program at the Clay Army National Guard Center through the 122nd Regiment Regional Training Institute.
Aftermath
The program operated as Charlie Company, 2nd Battalion, 122nd Regional Training Institute, under the 78th Troop Command, with accelerated and traditional commissioning formats.
2008
Modern GMI program returns to MariettaStrategyBackground
The revived GMI program was connected to the historical location and identity of the original institute in Marietta.
Action taken
The Georgia Army National Guard returned the modern GMI program to Marietta.
Aftermath
GMI’s contemporary officer-training identity was re-established in the city where the original institute had operated.
1961
Georgia Army National Guard adopts the GMI name for officer trainingStrategyBackground
The historic Marietta military institute had not been rebuilt after its Civil War destruction, but its name retained significance in Georgia military education.
Action taken
The Georgia Army National Guard revived the Georgia Military Institute name for its Officer Candidate School curriculum.
Aftermath
The name became associated with a modern National Guard officer-commissioning program rather than a residential nineteenth-century military school.
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