Commander

Commander

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Commander is a naval rank
Naval officer ranks
Navies have military rank systems that often are quite different from those of armies or air forces. Sometimes, services that are considered parts of the navy – marine or amphibious corps – use the army-style ranks instead, while the ranks listed here are reserved for fleets.-NATO Rank...

 which is also sometimes used as a military title depending on the individual customs of a given military service. Commander is also used as a rank or title in some organizations outside of the armed forces, particularly in police and law enforcement.

Commander as a naval rank


Commander is a rank used in navies but is very rarely used as a rank in armies
Army
An army An army An army (from Latin arma "arms, weapons" via Old French armée, "armed" (feminine), in the broadest sense, is the land-based military of a nation or state. It may also include other branches of the military such as the air force via means of aviation corps...

 (except in special forces where it designates the team leader). The title (originally "master and commander") originated in the 18th century to describe naval officers who commanded ships of war too large to be commanded by a Lieutenant but too small to warrant the assignment of a post-captain, or (before about 1770) a sailing-master; the commanding officer served as his own Master. In practice, these were usually unrated sloops-of-war
Sloop-of-war
In the 18th and most of the 19th centuries, a sloop-of-war was a warship with a single gun deck that carried up to eighteen guns. As the rating system covered all vessels with 20 guns and above, this meant that the term sloop-of-war actually encompassed all the unrated combat vessels including the...

 of no more than 20 guns. The Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 shortened "master and commander" to "commander" in 1794; however, the term "master and commander" remained (unofficially) in common parlance for several years. The equivalent American rank master commandant
Master Commandant
Master commandant was a rank within the early United States Navy. The rank of master commandant was slightly higher than lieutenant, and a master commandant would often command warships too small to justify the command of a full captain. In the United States Navy, the rank was shortened to...

 remained in use until changed to commander in 1838. A corresponding rank in some navies is frigate captain
Frigate Captain
Frigate captain is a naval rank in the naval forces of several countries.It is, usually, equivalent to the Commonwealth/US Navy rank of commander.Countries using this rank include Argentina and Spain , France , Belgium , Italy ,...

. In the 20th and 21st centuries, the rank has been assigned the NATO rank code of OF-4.

Royal Navy




A commander in the Royal Navy is above the rank of lieutenant commander
Lieutenant Commander
Lieutenant Commander is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander...

, below the rank of captain
Captain (naval)
Captain is the name most often given in English-speaking navies to the rank corresponding to command of the largest ships. The NATO rank code is OF-5, equivalent to an army full colonel....

, and is equivalent in rank to a lieutenant colonel
Lieutenant colonel
Lieutenant colonel is a rank of commissioned officer in the armies and most marine forces and some air forces of the world, typically ranking above a major and below a colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence...

 in the army. A commander may command a frigate
Frigate
A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...

, destroyer
Destroyer
In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...

, submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

, aviation squadron or shore installation, or may serve on a staff.

Royal Australian Navy


A commander in the Royal Australian Navy
Royal Australian Navy
The Royal Australian Navy is the naval branch of the Australian Defence Force. Following the Federation of Australia in 1901, the ships and resources of the separate colonial navies were integrated into a national force: the Commonwealth Naval Forces...

 (RAN) is identical in description to a commander in the British Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

. RAN chaplains who are Division 1, 2 and 3 (of 5 divisions) have the equivalent rank standing of commanders. This means that to officers and NCOs below the rank of commander, lieutenant colonel or wing commander, the chaplain is a superior. To those officers ranked higher than commander, the chaplain is subordinate. Although this equivalency exists, RAN chaplains who are Division 1, 2 and 3 do not actually wear the rank of commander, and they hold no command privilege.

Royal Air Force


Since the British Royal Air Force
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

's middle-ranking officers' designations are modelled after the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

's, the term wing commander
Wing Commander (rank)
Wing commander is a commissioned rank in the Royal Air Force and the air forces of many other Commonwealth countries...

 is used as a rank and is equivalent to a lieutenant colonel in the army or commander in the navy. The rank is above squadron leader
Squadron Leader
Squadron Leader is a commissioned rank in the Royal Air Force and the air forces of many countries which have historical British influence. It is also sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. In these...

 and below group captain
Group Captain
Group captain is a senior commissioned rank in the Royal Air Force and the air forces of many other Commonwealth countries. It ranks above wing commander and immediately below air commodore...

.

In the now defunct Royal Naval Air Service
Royal Naval Air Service
The Royal Naval Air Service or RNAS was the air arm of the Royal Navy until near the end of the First World War, when it merged with the British Army's Royal Flying Corps to form a new service , the Royal Air Force...

, which amalgamated with the Royal Flying Corps
Royal Flying Corps
The Royal Flying Corps was the over-land air arm of the British military during most of the First World War. During the early part of the war, the RFC's responsibilities were centred on support of the British Army, via artillery co-operation and photographic reconnaissance...

 to form the Royal Air Force in 1918, pilots held appointments as well as their normal Royal Navy ranks, and wore insignia appropriate to the appointment instead of the rank. A flight commander wore a star above a lieutenant's two rank stripes, squadron commander wore two stars above two rank stripes (less than eight years' seniority) or two-and-a-half rank stripes (over eight years seniority), and wing commander wore three rank stripes. The rank stripes had the usual Royal Navy curl, and were surmounted by an eagle.

Russia


In the Russian Navy the equivalent rank to commander is "captain of the second rank" .

British Army


In the British Army
British Army
The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...

, the term "commander" is officially applied to the non-commissioned officer
Non-commissioned officer
A non-commissioned officer , called a sub-officer in some countries, is a military officer who has not been given a commission...

 in charge of a section
Section (military unit)
A section is a small military unit in some armies. In many armies, it is a squad of seven to twelve soldiers. However in France and armies based on the French model, it is the sub-division of a company .-Australian Army:...

 (section commander), vehicle (vehicle commander) or gun (gun commander), to the subaltern
Subaltern (rank)
A subaltern is a chiefly British military term for a junior officer. Literally meaning "subordinate," subaltern is used to describe commissioned officers below the rank of captain and generally comprises the various grades of lieutenant. In the British Army the senior subaltern rank was...

 or captain commanding a platoon
Platoon
A platoon is a military unit typically composed of two to four sections or squads and containing 16 to 50 soldiers. Platoons are organized into a company, which typically consists of three, four or five platoons. A platoon is typically the smallest military unit led by a commissioned officer—the...

 (platoon commander), or to the brigadier
Brigadier
Brigadier is a senior military rank, the meaning of which is somewhat different in different military services. The brigadier rank is generally superior to the rank of colonel, and subordinate to major general....

 commanding a brigade
Brigade
A brigade is a major tactical military formation that is typically composed of two to five battalions, plus supporting elements depending on the era and nationality of a given army and could be perceived as an enlarged/reinforced regiment...

 (brigade commander). Other officers commanding units are usually referred to as the officer commanding
Officer Commanding
The Officer Commanding is the commander of a sub-unit or minor unit , principally used in the United Kingdom and Commonwealth. In other countries, the term Commanding Officer is applied to commanders of minor as well as major units.Normally an Officer Commanding is a company, squadron or battery...

 (OC), commanding officer
Commanding officer
The commanding officer is the officer in command of a military unit. Typically, the commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as he sees fit, within the bounds of military law...

 (CO), general officer commanding
General Officer Commanding
General Officer Commanding is the usual title given in the armies of Commonwealth nations to a general officer who holds a command appointment. Thus, a general might be the GOC II Corps or GOC 7th Armoured Division...

 (GOC), or general officer commanding-in-chief (GOC-C), depending on rank and position, although the term "commander" may be applied to them informally.

In the First Aid Nursing Yeomanry
First Aid Nursing Yeomanry
The First Aid Nursing Yeomanry is a British independent all-female unit and registered charity affiliated to, but not part of, the Territorial Army, formed in 1907 and active in both nursing and intelligence work during the World Wars.-Formation:It was formed as the First Aid Nursing Yeomanry in...

 commander is a rank equivalent to major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

.

New Zealand Army


The usage is similar to the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

, with the term "commander" usually applying to very senior officers only, typically at divisional level (major general).

Spanish Armed Forces and Guardia Civil


In the Spanish Army
Spanish Army
The Spanish Army is the terrestrial army of the Spanish Armed Forces responsible for land-based military operations. It is one of the oldest active armies - dating back to the 15th century.-Introduction:...

, the Spanish Air Force
Spanish Air Force
-The early stages:Hot air balloons had been used with military purposes in Spain as far back as 1896. In 1905, with the help of Alfredo Kindelán, Leonardo Torres y Quevedo directed the construction of the first Spanish dirigible in the Army Military Aerostatics Service, created in 1896 and located...

 and the Marine Infantry, the term commander is the literal translation of "comandante", the Spanish equivalent of a Commonwealth major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

. The Guardia Civil shares the Army ranks, and the officer commanding a house-garrison (usually a NCO or a lieutenant, depending on the size) is addressed as the "comandante de puesto" (post commander).

United States Army


In the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

, the term "commander" is officially applied to the commanding officer
Commanding officer
The commanding officer is the officer in command of a military unit. Typically, the commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as he sees fit, within the bounds of military law...

 of army units; hence, there are company commanders
Company Commander
A company commander is the commanding officer of a company, a military unit which typically consists of 100 to 350 soldiers, often organized into three or four smaller units called platoons....

, battalion commanders, brigade commanders, and so forth. At the highest levels of U.S. military command structure, "commander" also refers to what used to be called commander-in-chief
Commander-in-Chief
A commander-in-chief is the commander of a nation's military forces or significant element of those forces. In the latter case, the force element may be defined as those forces within a particular region or those forces which are associated by function. As a practical term it refers to the military...

, or CINC, until October 24, 2002, although the term CINC is still used in casual speech.

United States Air Force


In the Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

, the term "commander" (abbreviated "CC" in office symbols, i.e. "OG/CC" for "operations group commander") is officially applied to the commanding officer of an Air Force unit; hence, there are flight commanders, squadron commanders, group commanders, wing commanders, and so forth. In rank, a flight
Flight (military unit)
A flight is a military unit in an air force, naval air service, or army air corps. It usually comprises three to six aircraft, with their aircrews and ground staff; or, in the case of a non-flying ground flight, no aircraft and a roughly equivalent number of support personnel. In most usages,...

 commander is typically a lieutanant or captain, a squadron
Squadron (aviation)
A squadron in air force, army aviation or naval aviation is mainly a unit comprising a number of military aircraft, usually of the same type, typically with 12 to 24 aircraft, sometimes divided into three or four flights, depending on aircraft type and air force...

 commander is typically a major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

 or lieutenant colonel
Lieutenant colonel
Lieutenant colonel is a rank of commissioned officer in the armies and most marine forces and some air forces of the world, typically ranking above a major and below a colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence...

, a group
Group (air force)
A group is a military aviation unit, a component of military organization and a military formation. Usage of the terms group and wing differ from one country to another, as well as different branches of a defence force, in some cases...

 commander is typically a colonel
Colonel
Colonel , abbreviated Col or COL, is a military rank of a senior commissioned officer. It or a corresponding rank exists in most armies and in many air forces; the naval equivalent rank is generally "Captain". It is also used in some police forces and other paramilitary rank structures...

, and a wing
Wing (air force unit)
Wing is a term used by different military aviation forces for a unit of command. The terms wing, group or Staffel are used for different-sized units from one country or service to another....

 commander is typically a senior colonel or a brigadier general
Brigadier General
Brigadier general is a senior rank in the armed forces. It is the lowest ranking general officer in some countries, usually sitting between the ranks of colonel and major general. When appointed to a field command, a brigadier general is typically in command of a brigade consisting of around 4,000...

.

An "aircraft commander" is also designated for all flights of United States Air Force aircraft. This individual must be a pilot and an officer that has graduated from a formal aircraft commander course and is designated on flight orders by the unit commander for that particular flight. This individual is in command of all military personnel on the aircraft regardless of rank (even individuals that out-rank the aircraft commander).

NASA rank


In NASA spacecraft missions since the beginning of Project Gemini
Project Gemini
Project Gemini was the second human spaceflight program of NASA, the civilian space agency of the United States government. Project Gemini was conducted between projects Mercury and Apollo, with ten manned flights occurring in 1965 and 1966....

, one crew member on each spacecraft is designated as mission commander. The commander is the captain of the ship, and makes all real-time critical decisions on behalf of the crew and in coordination with the Mission Control Center (MCC).

British police rank


Within the British police, commander is a chief officer
Chief police officer
Chief police officer is a phrase used in the United Kingdom to describe the position held by the most senior police officer in a police force. It refers to either one of the 53 Chief Constables, the Commissioner of the City of London Police or the Commissioner of the Metropolitan Police. Such...

 rank in the two police forces responsible for law enforcement within London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, the Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 and City of London Police
City of London Police
The City of London Police is the territorial police force responsible for law enforcement within the City of London, England, including the Middle and Inner Temple. The service responsible for law enforcement within the rest of Greater London is the Metropolitan Police Service, a separate...

. In both forces, the rank is senior to chief superintendent, in the Metropolitan Police it is junior to Deputy Assistant Commissioner
Deputy Assistant Commissioner
Deputy assistant commissioner is a rank in London's Metropolitan Police Service between assistant commissioner and commander. It is equivalent to deputy chief constable in other British police forces and wears the same insignia: a pip above crossed tipstaves within a wreath.The rank was introduced...

 and in the City of London Police it is junior to assistant commissioner. In forces outside of London, the rank equates to assistant chief constable
Assistant Chief Constable
Assistant chief constable is the third highest rank in all British territorial police forces , as well as the British Transport Police, Ministry of Defence Police and...

.

The Metropolitan Police introduced the rank in 1946, after they split the rank of deputy assistant commissioner with senior DACs keeping the rank and title with junior ones being regraded as commanders. The Metropolitan Police also had the rank of deputy commander
Deputy Commander
Deputy commander was a rank in the London Metropolitan Police which existed between 1946 and 1968.In 1946, the rank of chief constable, which was between superintendent and deputy assistant commissioner, was renamed deputy commander. At the same time, the rank of deputy assistant commissioner was...

, ranking just below that of commander, between 1946 and 1968. In addition, officers in charge of policing each of the London's boroughs
London borough
The administrative area of Greater London contains thirty-two London boroughs. Inner London comprises twelve of these boroughs plus the City of London. Outer London comprises the twenty remaining boroughs of Greater London.-Functions:...

 are given the title "borough commander". However, such officers do not hold the actual rank of commander but instead hold the rank of chief superintendent
Chief Superintendent
Chief superintendent is a senior rank in police forces organised on the British model.- United Kingdom :In the British police, a chief superintendent is senior to a superintendent and junior to an assistant chief constable .The highest rank below Chief Officer level, chief...

. An exception to this is the Borough Commander of Westminster, who is actually a commander and not a chief superintendent due to the size, complexity and high-profile nature of the borough.

Australian police rank


In Australia, commander is a rank used by the Victorian, Tasmanian, Western Australian, South Australian, and Australian Federal
Australian Federal Police
The Australian Federal Police is the federal police agency of the Commonwealth of Australia. Although the AFP was created by the amalgamation in 1979 of three Commonwealth law enforcement agencies, it traces its history from Commonwealth law enforcement agencies dating back to the federation of...

 police forces. The insignia consists of a crown over three Bath Stars in a triangular formation, equivalent to a brigadier
Brigadier
Brigadier is a senior military rank, the meaning of which is somewhat different in different military services. The brigadier rank is generally superior to the rank of colonel, and subordinate to major general....

 in the army. In all four forces, it is junior to the rank of assistant commissioner
Assistant Commissioner
Assistant commissioner is a rank used in many police forces across the globe. It is also a rank used in revenue administrations in many countries.-Australia:...

, and senior to the rank of chief superintendent
Chief Superintendent
Chief superintendent is a senior rank in police forces organised on the British model.- United Kingdom :In the British police, a chief superintendent is senior to a superintendent and junior to an assistant chief constable .The highest rank below Chief Officer level, chief...

, with the exception of Western Australia and Victoria where it is senior to the rank of superintendent
Superintendent (police)
Superintendent , often shortened to "super", is a rank in British police services and in most English-speaking Commonwealth nations. In many Commonwealth countries the full version is superintendent of police...

.

In New South Wales the position of commander is instated to officers (usually superintendents) in charge of a command or unit.

United States police rank


The Los Angeles Police Department
Los Angeles Police Department
The Los Angeles Police Department is the police department of the city of Los Angeles, California. With just under 10,000 officers and more than 3,000 civilian staff, covering an area of with a population of more than 4.1 million people, it is the third largest local law enforcement agency in...

 and the San Francisco Police Department
San Francisco Police Department
The San Francisco Police Department, also known as the SFPD and San Francisco Department Of Police, is the police department of the City and County of San Francisco, California...

 are two of the few American police departments which use this rank. A commander in the LAPD is equivalent to an inspector
Inspector
Inspector is both a police rank and an administrative position, both used in a number of contexts. However, it is not an equivalent rank in each police force.- Australia :...

 in other US departments (such as the NYPD); the LAPD rank was originally called inspector as well, but was changed in 1974 to commander after senior officers voiced a preference for the more military
Military
A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

-sounding rank.

Commander is also utilized by larger Sheriff's
Sheriff
A sheriff is in principle a legal official with responsibility for a county. In practice, the specific combination of legal, political, and ceremonial duties of a sheriff varies greatly from country to country....

 Departments in the United States. The rank usually falls between Chief Deputy and Captain, which is three positions removed from the sheriff. The Clark County Sheriff's Office in southwest Washington state uses the rank of commander. It falls between the rank of sergeant and the rank of branch chief. The insignia worn by a Clark County Sheriff's Office commander is a gold oak leaf, the same insignia worn by a major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

 in the Army, Air Force, or Marine Corps.

The Washington, DC, Metropolitan Police Department (MPDC) also uses the rank of commander. The rank falls between those of inspector and assistant chief.

The Rochester, NY, Police Department (RPD) uses the rank of commander. Higher than captain and below deputy chief, the rank is achieved by appointment. Commander is the rank held by the two patrol division heads and other commanders fill various administrative roles. The St Paul Police Department (MN) is another police force that uses the rank of commander. In the St Paul Police Department, commanders serve as the chief of the district/unit that they oversee.

Many police departments in the midwest (including the Chicago Police Department
Chicago Police Department
The Chicago Police Department, also known as the CPD, is the principal law enforcement agency of Chicago, Illinois, in the United States, under the jurisdiction of the Mayor of Chicago. It is the largest police department in the Midwest and the second largest local law enforcement agency in the...

) use the rank of commander. It is equivalent to a lieutenant in most other departments, being above a sergeant and below a deputy chief or captain.

Commander is also used as a title in certain circumstances, such as the commander of a squad of detectives, who would usually be of the rank of lieutenant.

Canadian police rank


The Montreal police force, Service de police de la Ville de Montréal
Service de police de la Ville de Montréal
The Service de police de la Ville de Montréal is the police force for the city of Montreal, Quebec, Canada. With about 4,400 officers and 1,600 civilian staff, it is the second largest municipal police agency in Canada after the Toronto Police Service and second largest in the province behind the...

, uses the rank of commander.

Incident Command System


In the Incident Command System
Incident Command System
The Incident Command System is "a systematic tool used for the command, control, and coordination of emergency response" according to the United States Federal Highway Administration...

 the incident commander is in charge of the response to an emergency. The title may pass from person to person as the incident develops.

Military and chivalric orders


The title of commander is used in the military orders, such as the Knights Hospitaller
Knights Hospitaller
The Sovereign Military Hospitaller Order of Saint John of Jerusalem of Rhodes and of Malta , also known as the Sovereign Military Order of Malta , Order of Malta or Knights of Malta, is a Roman Catholic lay religious order, traditionally of military, chivalrous, noble nature. It is the world's...

, for a member senior to a knight
Knight
A knight was a member of a class of lower nobility in the High Middle Ages.By the Late Middle Ages, the rank had become associated with the ideals of chivalry, a code of conduct for the perfect courtly Christian warrior....

. The title of knight commander is often used to denote an even higher rank. These conventions are also used by most of the continental orders of chivalry. The United Kingdom uses different classifications.

In most of the British Orders of Knighthood, the grade of knight (or dame) commander is the lowest grade of knighthood, but is above the grade of companion (which does not carry a knighthood). In the Royal Victorian Order
Royal Victorian Order
The Royal Victorian Order is a dynastic order of knighthood and a house order of chivalry recognising distinguished personal service to the order's Sovereign, the reigning monarch of the Commonwealth realms, any members of her family, or any of her viceroys...

 and the Order of the British Empire
Order of the British Empire
The Most Excellent Order of the British Empire is an order of chivalry established on 4 June 1917 by George V of the United Kingdom. The Order comprises five classes in civil and military divisions...

, the grade of commander is senior to the grade of lieutenant or officer respectively, but junior to that of knight or dame commander. In the British Order of St John
Venerable Order of Saint John
The Most Venerable Order of the Hospital of Saint John of Jerusalem , is a royal order of chivalry established in 1831 and found today throughout the Commonwealth of Nations, Hong Kong, Ireland and the United States of America, with the world-wide mission "to prevent and relieve sickness and...

, a commander ranks below a knight. (However, knights of the Order of St John are not called "Sir".)

In common usage


"Commander" may sometimes be used by laymen, usually applied to the person who is accountable for and holds authority over a group or the attempts of a group to achieve a common goal.

See also


  • Comparative military ranks
    Comparative military ranks
    This article is a list of various states' armed forces ranking designations. Comparisons are made between the different systems used by nations to categorize the hierarchy of an armed force compared to another. Several of these lists mention NATO reference codes. These are the NATO rank reference...



Unit command:
  • Company commander
    Company Commander
    A company commander is the commanding officer of a company, a military unit which typically consists of 100 to 350 soldiers, often organized into three or four smaller units called platoons....

  • Brigade commander