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Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world. In Commonwealth countries, the various degrees of sergeant major are appointments held by warrant officers. In the United States, there are also various degrees of sergeant major (command sergeant major, sergeant major of the army, sergeant major of Marine Corps), but they are all of the same pay grade.
In 16th century Spain, the sargento mayor ("sergeant major") was a general officer. He commanded an army's infantry, and ranked about third in the army's command structure; he also acted as a sort of chief of staff to the army's commander.
In the 17th century, sergeant majors appeared in individual regiments. These were field officers, third in command of their regiments (after their colonels and lieutenant colonels), with a role similar to the older, army-level sergeant majors (although obviously on a smaller scale). The older position became known as "sergeant major general" to distinguish it. Over time, the term sergeant was dropped from both titles, giving rise to the modern ranks of major and major general.
The full title of sergeant major fell out of use until the latter part of the 18th century, when it began to be applied to the senior non-commissioned officer of an infantry battalion or cavalry regiment. It is about this time that the U.S. and British histories of the title diverge, with the American Revolutionary War.
Commonwealth of Nations forces 
A sergeant major is an appointment, not a rank. It is normally held by the senior warrant officer of an army or marine unit. These appointments are made at several levels, for example: the senior warrant officer of a company, battery or squadron; the senior warrant officer of a battalion or regiment. The title normally consists of the unit title (e.g. 'company') followed by 'sergeant major', and abbreviated by the initials (e.g. CSM). A sergeant major of a regiment or battalion is known as a regimental sergeant major, rather than a "regiment sergeant major" or "battalion sergeant major". In the Australian Defence Force, in addition to CSMs and RSMs, the most senior warrant officer of the army carries the appointment (and special insignia) of Regimental Sergeant Major of the Army (RSM-A).
The sergeant-major of a unit is normally directly responsible to the commanding officer for all matters pertaining to dress, deportment, discipline, conduct, performance, standards and morale of the non-commissioned members (NCMs) of that unit. Sergeant majors are normally addressed as "sir" or "ma'am" by subordinates, and by Mr or Ms (surname) by superiors, with the term 'RSM'/'CSM'/etc reserved for the sergeant major's commanding officer.
Canadian Army 
The appointment of sergeant major is given to the senior non-commissioned member within sub-units, units and some formations of the Canadian Army.
The regimental sergeant-major is the senior sergeant major in a battalion-sized unit, including infantry battalions and artillery, armoured, engineer, and signal regiments; this appointment is normally held by a chief warrant officer. The same position can also be held by a master warrant officer in anticipation of promotion, or a shortage of available chief warrant officers.
In company-sized units, the company sergeant-major generally holds the rank of master warrant officer, although in some cases it may be held by a warrant officer if the company is smaller, or in a shortage of available master warrant officers. In artillery batteries, this appointment is known as battery sergeant-major, while in units with a cavalry heritage (armoured, combat engineer, and signals squadrons), the term is squadron sergeant-major.
In company-sized sub-units of battalions or regiments, the company sergeant-major (or equivalent) normally answers both to his or her officer commanding for matters pertaining to the company in particular, and to the regimental sergeant-major on matters of concern to the regimental sergeant-major. company sergeant-majors and their equivalents are normally addressed as "Sergeant-Major" or by rank; by subordinates they are thereafter as "Sir", "Ma'am", or "Warrant" (for warrant officers) as appropriate. "CSM" ("BSM", "SSM") is a title normally reserved for use by the commanding officer.
Regimental sergeant-majors are never addressed as "Sergeant-Major"; they are addressed by rank or as "Mr (Surname)" or "Ms (Surname)", and thereafter by subordinates as "Sir" or "Ma'am". "RSM" is reserved for use by the commanding officer.
In some unusual cases, a chief petty officer 1st class or chief petty officer 2nd class in the Royal Canadian Navy may succeed to a sergeant-major's position, especially in units with a large number of "purple trades", such as service battalions. The forms of address generally remain the same, except that chief petty officers 1st and 2nd class are never addressed as "Sir" or "Ma'am", but as "Chief".
The opera Leo, the Royal Cadet (1889) by Oscar Ferdinand Telgmann and George Frederick Cameron includes a character "Battalion Sergeant Major at the Royal Military College of Canada" and song "The Royal Cadet - The Battalion Sergeant Major". The senior cadet of the Royal Military College of Canada was a battalion sergeant major from 1878–1923 and from 1934-42. Since 1952, however, the senior cadet is known as a cadet wing-commander.
Royal Canadian Mounted Police 
Sergeant major is a rank in the Royal Canadian Mounted Police. While technically it is the 6th level of rank, below corps sergeant major and above staff sergeant major, it, along with the other two, are specialized ranks and not part of the normal progression, which would proceed from staff sergeant to inspector.
A sergeant major appointment exists in each military unit from company to division/formation. Their main job is to assist the commander in the discipline and welfare of the enlisted men. Their authority and responsibility at parades and ceremonies extends over even commissioned officers while on the parade square. In the Singapore Armed Forces, two kinds of sergeant major exist, a regimental sergeant major and a company sergeant major. An regimental sergeant major maybe placed in charge of a battalion, brigade, division or service level. A regimental sergeant major could also be appointed as RSM for a vocation, i.e. infantry vocation/formation sergeant major. This appointed usually be held by a senior warrant officer or a master warrant officer, although at times a 1st warrant officer may be appointed. A company sergeant major may be a 1WO, 2WO and 3WO. Sometimes, a master sergeant or a staff sergeant may be appointed. Military Experts of rank ME 3 could also be sergeant majors, in-charge of logistical units or naval units. This practice is also mirrored in the National Cadet Corps with the master sergeant or staff sergeant being appointed as unit sergeant major. Also, some schools with more than one unit, i.e. having a land as well as a sea unit might appointed an RSM from either unit.
Sri Lanka 
In Sri Lanka, the rank of sergeant major exists in the Sri Lanka Army and Sri Lanka Police Service. In the army a warrant officer 2nd class is known as a sergeant major while a warrant officer 1st class is a regimental sergeant major. In the police the most senior non-gazetted officer rank is police sergeant major.
South Africa 
As described above, sergeant-major is not a rank but an appointment held by a warrant officer class 1 or warrant officer class 2. Regardless of the appointment, the warrant officer is addressed as “sergeant-major”.
The rank was divided into two classes in 1921. The national coat of arms was assigned as the badge of the 1st class, and the crown was assigned to the 2nd class. In both classes, senior appointments were indicated by a wreath around the badge.
From 1957 to 2002, all warrant officers 1st class wore the wreathed coat of arms, and the warrant officer 2nd class wore the plain coat of arms. Since 2002, all warrant officers have worn the new national coat of arms, the classes and appointments being indicated by the shape of the surrounding frame, and the addition of stars and crossed swords above the arms.
Up until 1 June 2008, the highest appointment (Level 1), that was held by a warrant officer class 1 was the Sergeant-Major of the South African National Defence Force.
Other senior warrant officer appointments up until 1 June 2008 were
- Level 2: Sergeant-Major of the Army
- Level 3: Formation sergeant-major
- Level 4: Group or base sergeant-major or regimental sergeant-major
Starting 1 June 2008, the warrant ranks (Army/ Navy/ Air Force) are:
- Master chief warrant officer (formerly level 1)—e.g. Master Chief Warrant Officer of the South African National Defence Force.
- Senior chief warrant officer (formerly level 2)—e.g. Senior Chief Warrant Officer of the South African Army.
- Chief warrant officer (formerly level 3)
- Master warrant officer (formerly level 4A)
- Senior warrant officer (formerly level 4)
- Warrant officer class one
- Warrant officer class two
A company/squadron/battery sergeant major should ordinarily be a WO2.
United Kingdom 
Due to differences in nomenclature between Regiments and Corps sergeant majors' titles do vary; Squadron sergeant major and battery sergeant major for instance would be found in the cavalry and Royal Artillery respectively, and in the REME there are the appointments of artificer sergeant major.
Sergeant major instructor is an appointment held by warrant officers class 1 in the Small Arms School Corps and the Army Physical Training Corps and by some WO1s in the Royal Engineers. It is also an appointment held by some of the civilian adult instructors in the Army Cadet Force.
A machinist sergeant-major is a specialist most often found in the Corps of Royal Engineers or the Royal Army Service Corps, and was the title of one of the major characters in the book and the film based on it, Ice Cold in Alex.
The posts of regimental and squadron corporal major are the Household Cavalry's equivalent of sergeant majors, as the Household Cavalry traditionally does not have ranks named sergeant. The Rifles use the spelling "serjeant major".
The first British use of the term was around 1680 and was applied to the senior sergeant in the colonel's company of an infantry regiment, but it wasn't formalised until 1797, when the sergeant major was added to the battalion or regimental staff. When chevrons were introduced as badges of rank, he wore four, later under a crown.
In 1813, cavalry regiments introduced the troop sergeant major to replace the quartermaster as the senior NCO of a troop; this required the existing position to be explicitly redesignated the regimental sergeant major. Later, the rise of the squadron as the principal sub-regimental unit saw the corresponding introduction of the squadron sergeant major. The infantry, however, hung on to the undifferentiated, one-per-battalion sergeant major until the eve of the First World War, when the introduction of the company sergeant major forced them to adopt the RSM title as well. (As an infantry regiment could be, and usually was, made up of a number of battalions, one would logically expect the new title to be battalion sergeant major rather than regimental sergeant major. Perhaps the infantry felt this would imply a lower status than their cavalry equivalents.)
In 1881, the cavalry RSM and infantry sergeant major were among a number of senior non-commissioned positions that were confirmed with warrants, making them warrant officers. This was extended and rationalised in 1915, with the introduction of the new ranks of warrant officer class I (WOI) and warrant officer class II (WOII). RSM became an appointment of the former, CSM and SSM of the latter.
The Royal Marines continued to use a single rank of sergeant major, equating to warrant officer class I, until after the Second World War, when they adopted the Army system.
Israel Defense Forces 
Rav samal mitkadem
The רב-סמל מתקדם (Rav samal mitkadem, "sergeant major") is a non-commissioned officers (נגדים) rank in the Israel Defense Forces (IDF). Because the IDF is an integrated force, they have a unique rank structure. IDF ranks are the same in all services (army, navy, air force, etc.). The ranks are derived from those of the paramilitary Haganah developed in the British Mandate of Palestine period to protect the Yishuv. This origin is reflected in the slightly-compacted IDF rank structure.
|Israel Defense Forces ranks : נגדים Nagadim - Non-Commissioned Officers (NCO)|
Rav samal rishon
Rav samal mitkadem
Rav samal bakhír
|Sergeant First Class||Master Sergeant||Sergeant Major||Warrant Officer||Chief Warrant Officer|
|More details at Israel Defense Forces ranks & IDF 2012 - Ranks (idf.il, english)|
United States 
United States Marine Corps 
In the United States Marine Corps, sergeant major is the ninth and highest enlisted rank, just above first sergeant, and equal in grade to master gunnery sergeant, although the two have different responsibilities. Sergeant major is both a rank and a military billet. Marine Corps sergeants major serve as the senior enlisted marine in the Corps' units of battalion, squadron or higher echelon, as the unit commander's senior enlisted advisor and to handle matters of discipline and morale among the enlisted marines. Sergeant Major of the Marine Corps is a separate and unique position.
United States Army 
In the U.S. Army, sergeant major refers to both a military rank and a specific leadership position. It is the highest enlisted rank, just above first sergeant and master sergeant, with a pay grade of E-9, NATO rank OR-9 . The leadership position—command sergeant major—is the senior enlisted advisor to the commanding officer and carries with it certain ceremonial functions such as caring for the unit's colors (flag). Additionally, command sergeants major serve as monitors of, and advocates for, the enlisted soldiers in the command. This position mostly exists in units of battalion size and larger.
Because the command sergeant major represents all of the enlisted soldiers in the command, he or she does not wear the collar insignia of his or her career specialty (e.g., infantry, quartermaster, intelligence, inter alia), but instead wears the command sergeant major (formerly "branch immaterial") collar insignia. The insignia is a gold-color rendering of the coat of arms of the United States; like the branch of service insignia of all U.S. Army enlisted soldiers, it is placed upon a gold-colored metal disk, one inch in diameter.
A SGM or CSM is referred to, and addressed, as "Sergeant Major". The Sergeant Major of the Army is a separate and unique position, but is still addressed as "Sergeant Major".
The first official U.S. use of the term was in 1776, when a sergeant major was appointed to the headquarters of each infantry battalion of the Continental Army. The rank was in use by both the Union Army and the Confederate Army during the American Civil War. At that time, it was the highest enlisted rank, being just above quartermaster sergeant. The same rank insignia was used by both armies. Both armies varied the color of the stripes by assigning red for artillery, yellow for cavalry, and blue for infantry. Some Confederate militia units varied these colors even farther and had other colors including black stripes for various units. In 1920 with the standardization of the army's enlisted pay grades, it ceased to be a title of rank or grade. However, it survived as the job title of the senior NCO of a battalion and was re-introduced as a rank in 1958 when Congress authorized the E-8 and E-9 pay grades. The appointment of Sergeant Major of the Army was created on July 4, 1966. Command sergeants major got separate insignia in 1968.
The U.S. Marine Corps's first sergeant major was Archibald Sommers, appointed on January 1, 1801. This was originally a solitary post, similar to the modern Sergeant Major of the Marine Corps, but by 1899 there were five sergeants major. The title was abolished in 1946, but re-introduced as a rank in 1954. The post of Sergeant Major of the Marine Corps was established in 1957, as the senior enlisted advisor to the Commandant of the Marine Corps.
See also 
- History of the Sergeant Major (US) by CSM (Ret.) Daniel K. Elder
- Sergeants Major of the Army. ISBN 0-16-067866-8, CMH Pub. 70-63-1. By CSM Daniel K. Elder, et al. Describes the origin and growth of the Office of the Sergeant Major of the Army. Includes biographies of each of the Sergeants Major of the Army.
- The London Gazette: . 16 April 1981.
- The London Gazette: . 2 December 1881.
- The earliest usage of "sergeant majors" in The Times is in 1822. The last of the (very occasional) usages of "sergeants major", except when referring to American NCOs, is in 1938.
- Richard Preston "Canada's R.M.C. A History of the Royal Military College"
- Radburn, A. (1990) 'South African Military Ranks and Insignia' in Militaria Vol 20 No 2
- Rank Insignia of the South African Army
- South African Air Force Rank Insignia
- Ordnance Insignia of the British Army: Non-Commissioned Ranks & Appointments
- "Israel Defense Forces ranks". wikipedia.org. Retrieved 18 October 2011.
- "Sergeants Major of the Marine Corps". Marine Corps Legacy Museum. Retrieved 2006-11-12.
- Official Site of the Chief Warrant Officer of the Army (Canada)
- Official Site of the Sergeant Major of the Army (U.S.)
- Official Site of the Sergeant Major of the Marine Corps (U.S.)
- Former Sergeants Major of the Army discuss the position
- U.S. Army Enlisted Rank Insignia - Criteria, Background, and Images
|United States enlisted ranks|
|Pay Grade →
Branch of Service ↓
|Air Force||AB||Amn||A1C||SrA||SSgt||TSgt||MSgt||SMSgt||CMSgt - CCM - CMSAF|
|Army||PVT||PV2||PFC||SPC - CPL||SGT||SSG||SFC||MSG - 1SG||SGM - CSM - SMA|
|Marine Corps||Pvt||PFC||LCpl||Cpl||Sgt||SSgt||GySgt||MSgt - 1stSgt||MGySgt - SgtMaj - SgtMajMarCor|
|Navy||SR||SA||SN||PO3||PO2||PO1||CPO||SCPO||MCPO - CMDCM - FORCM - FLTCM - MCPON|
|Coast Guard||SR||SA||SN||PO3||PO2||PO1||CPO||SCPO||MCPO - CMC - MCPOCG|