A brigadier general in the United States Army, Air Force, and Marine Corps, is a one-star general officer, with the pay grade of O-7. Brigadier general ranks above a colonel and below major general. Brigadier general is equivalent to the rank of rear admiral (lower half) in the other uniformed services.
U.S. Code of law explicitly limits the total number of general officers that may be on active duty. The total of active duty general officers is capped at 302 for the Army, 279 for the Air Force, and 80 for the Marine Corps. Some of these slots are reserved by statute.
Promotion, appointment and tour length
For promotion to the permanent grade of brigadier general, eligible officers are screened by a promotion board consisting of general officers from their branch of service. This promotion board then generates a list of officers it recommends for promotion to general rank. This list is then sent to the service secretary and the joint chiefs for review before it can be sent to the President, through the defense secretary, for consideration. The President nominates officers to be promoted from this list with the advice of the Secretary of Defense, the service secretary, and if applicable, the service's chief of staff or commandant. The President may nominate any eligible officer who is not on the recommended list if it serves in the interest of the nation, but this is extremely rare., 10 USC 5149. Office of the Judge Advocate General: Deputy Judge Advocate General; Assistant Judge Advocates General must then confirm the nominee by a majority vote before the officer can be promoted. Once a nominee is confirmed, they are promoted to that rank once they assume a position of office that requires an officer of that rank. For positions of office reserved by statute, the President nominates an officer for appointment to fill that position. For all three uniformed services, because the grade of brigadier general is a permanent rank, the nominee may still be screened by an in-service promotion board. Since the grade of brigadier general is permanent, the rank does not expire when the officer vacates a one-star position. Tour length varies depending on the position, by statute, and/or when the officer receives a new assignment but the average tour length per one-star billet is two to four years.
Other than voluntary retirement, statute sets a number of mandates for retirement. All brigadier generals must retire after five years in grade or 30 years of service, whichever is later, unless selected or appointed for promotion, or reappointed to grade to serve longer. Otherwise all general officers must retire the month after their 64th birthday. However, the Secretary of Defense can defer a general officer's retirement until the officer's 66th birthday and the President can defer it until the officer's 68th birthday. General officers typically retire well in advance of the statutory age and service limits, so as not to impede the upward career mobility of their juniors.
The rank of Brigadier General has existed in the United States armed forces since the American Revolutionary War. A brigadier general was, at first, strictly an infantry officer who commanded a brigade; however, over the course of the 19th and 20th centuries, the responsibilities of the rank expanded significantly.
During the period from March 16, 1802 to January 11, 1812, the rank of Major General was abolished and Brigadier General became the highest rank in the U.S. Army. Foreseeing the need for an expanded general staff in case of war, which seemed imminent, Congress restored the rank of Major General in January 1812.
The first Brigadier General in the U.S. Marine Corps was Commandant Archibald Henderson, promoted to the rank of brevet Brigadier General in the 1830s for his service in the Second Seminole War. The first non-brevet Brigadier General in the Marines was Commandant Jacob Zeilin who was promoted to the rank in 1874, but when he retired in 1876, Colonel once again became the highest rank in the Marines until March 1899 when Commandant Charles Heywood was promoted. Ever since then the office of Commandant has been held by a general officer, with the permanent rank of the Commandant raised to Major General in 1908 and to first Lieutenant General and then General during World War II, which rank it has held ever since.
The insignia for a brigadier general is one silver star worn on the shoulder or collar, and has not changed since the creation of the rank two centuries ago. Since the Mexican-American War, however, the lower rank of colonel has been the normal rank appointed to command a brigade.
Today, an Army or Marine Corps "BG" typically serves as Deputy Commander to the Commanding General of a division or division-sized units and assists in overseeing the planning and coordination of a mission. In an infantry brigade not attached to a division, a Brigadier General serves as the unit's commander, while a Colonel serves as deputy commander. An Air Force brigadier general typically commands a large wing. Additionally, one-star officers of all services may serve as high-level staff officers in large military organizations.
- List of United States military leaders by rank
- United States Air Force officer rank insignia
- United States Army officer rank insignia
- United States Marine Corps officer rank insignia
- Caselaw.lp.findlaw.com 10 USC 526. Authorized strength: general and flag officers on active duty.
- Law.cornell.edu, 10 USC 611. Convening of selection boards
- Law.cornell.edu, 10 USC 616. Recommendations for promotion by selection boards
- Law.cornell.edu, 10 USC 618. Action on reports of selection boards
- Law.cornell.edu, 10 USC 624. Promotions: how made.
- Caselaw.lp.findlaw.com, 10 USC 635. Retirement for years of service: regular brigadier generals and rear admirals (lower half).
- thomas.loc.gov, 10 USC 1253. Age 64: regular commissioned officers in general and flag officer grades; exception.
- Defenselink.mil, DoD News Briefing on Thursday, June 6, 1996. Retirement of Admiral Leighton W. Smith Jr.
- Act of January 11, 1812, ch. 14, 2 Stat. 671
|United States commissioned officer and officer candidate ranks|
|Pay grade / Branch of service||Officer
|Air Force||Cadet / OT / OC||2d Lt||1st Lt||Capt||Maj||Lt Col||Col||Brig Gen||Maj Gen||Lt Gen||Gen||GAF|||
|Army||CDT / OC||2LT||1LT||CPT||MAJ||LTC||COL||BG||MG||LTG||GEN||GA||GAS|
|Marine Corps||Midn / Cand||2ndLt||1stLt||Capt||Maj||LtCol||Col||BGen||MajGen||LtGen||Gen|||||
|Navy||MIDN / OC||ENS||LTJG||LT||LCDR||CDR||CAPT||RDML||RADM||VADM||ADM||FADM||AN|
|Coast Guard||CDT / OC||ENS||LTJG||LT||LCDR||CDR||CAPT||RDML||RADM||VADM||ADM|||||
|Public Health Service||[OC]||ENS||LTJG||LT||LCDR||CDR||CAPT||RADM||RADM||VADM||ADM|||||
Unofficial 1945 proposal for General of the Armies insignia; John J. Pershing's GAS insignia: ; George Dewey's AN insignia:
 Rank used for specific officers during World War II and Korea only, not permanent addition to rank structure
 Grade is authorized by the U.S. Code for use but has not been created
 Grade has never been created or authorized
|United States warrant officer ranks|
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|National Oceanic and
 Grade is authorized for use by U.S. Code but has not been created
 Grade never created or authorized
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