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Corps

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Corps

Navies Armies Air forces
Commissioned officers
Admiral of
the fleet
Marshal or
Field marshal
Marshal of
the air force
Admiral General Air chief marshal
Vice admiral Lieutenant general Air marshal
Rear admiral Major general Air vice-marshal
Commodore Brigadier or
Brigadier general
Air commodore
Captain Colonel Group captain
Commander Lieutenant colonel Wing commander
Lieutenant
commander
Major or
Commandant
Squadron leader
Lieutenant Captain Flight lieutenant
Sub-lieutenant Lieutenant or
First lieutenant
Flying officer
Ensign Second
lieutenant
Pilot officer
Midshipman Officer cadet Officer cadet
Enlisted grades
Warrant officer or
Chief petty officer
Warrant officer or
Sergeant major
Warrant officer
Petty officer Sergeant Sergeant
Leading seaman Corporal Corporal
Seaman Private Aircraftman
Standard NATO symbol for a corps. The Xs do not indicate the corps' number; instead, the three Xs represent a corps (two Xs represent a division and 1 X represents a brigade).

A corps ( "core"; the plural is spelled the same as singular but pronounced "cores"; from French, from the Latin corpus "body") is an organized body of people.

It may be:

Contents

  • Military formation 1
    • Australia 1.1
    • Canada 1.2
    • Republic of China (1911–1947) 1.3
    • France 1.4
    • Germany 1.5
    • Pakistan 1.6
    • Poland (1938–39) 1.7
    • United Kingdom 1.8
    • United States 1.9
      • Civil War 1.9.1
      • Spanish-American War 1.9.2
      • World Wars I & II 1.9.3
      • Cold War and 21st Century 1.9.4
    • Soviet Union 1.10
  • Administrative Corps 2
    • Australia 2.1
    • Canada 2.2
    • United States 2.3
  • Non-military use 3
  • See also 4
  • References and Further Reading 5

Military formation

In many armies, a corps is a battlefield formation composed of two or more divisions, and typically commanded by a lieutenant general. During World War I and World War II, due to the large scale of combat, multiple corps were combined into armies which then formed into army groups. In Western armies with numbered corps, the number is often indicated in Roman numerals (e.g., VII Corps).

Australia

In the later stages of World War I, the five infantry divisions of the First Australian Imperial Force (AIF)—consisting entirely of personnel who had volunteered for service overseas—were united as the Australian Corps, on the Western Front, under Lieutenant General Sir John Monash.

During World War II, the Australian I Corps was formed to co-ordinate three Second Australian Imperial Force (2nd AIF) units: the 6th, 7th and 9th Divisions, as well as other Allied units on some occasions, in the North African campaign and Greek campaign. Following the commencement of the Pacific War, there was a phased withdrawal of I Corps to Australia, and the transfer of its headquarters to the Brisbane area, to control Allied army units in Queensland and northern New South Wales (NSW). II Corps was also formed, with Militia units, to defend south-eastern Australia, and III Corps controlled land forces in Western Australia. Sub-corps formations controlled Allied land forces in the remainder of Australia. I Corps headquarters was later assigned control of the New Guinea campaign. In early 1945, when I Corps was assigned the task of re-taking Borneo, II Corps took over in New Guinea.

Canada

Canada first fielded a corps-sized formation in the First World War; the I Canadian Corps as a second corps headquarters was established in the UK, with the eventual formation of five Canadian divisions in England. I Canadian Corps eventually fought in Italy, II Canadian Corps in NW Europe, and the two were reunited in early 1945. After the formations were disbanded after VE Day, Canada has never subsequently organized a Corps headquarters.

Republic of China (1911–1947)

An Chinese Republic, and usually exercised command over two to three NRA Divisions and often a number of Independent Brigades or Regiments and supporting units. The Chinese Republic had 133 Corps during the Second Sino-Japanese War. After losses in the early part of the war, under the 1938 reforms, the remaining scarce artillery and the other support formations were withdrawn from the Division and was held at Corps, or Army level or higher. The Corps became the basic tactical unit of the NRA having strength nearly equivalent to an allied Division.

France

The French Army under Napoleon used corps-sized formations (French: Corps d'Armée) as the first formal combined-arms groupings of divisions with reasonably stable manning and equipment establishments. Napoleon first used the Corps d'Armée in 1805 . The use of the Corps d'Armée was a military innovation that provided Napoleon with a significant battlefield advantage in the early phases of the Napoleonic Wars. The Corps was designed to be an independent military group containing cavalry, artillery and infantry, and capable of defending against a numerically superior foe. This allowed Napoleon to mass the bulk of his forces to effect a penetration into a weak section of enemy lines without risking his own communications or flank. This innovation stimulated other European powers to adopt similar military structures. The Corps has remained an echelon of French Army organization to the modern day.

Germany

Command flag of a commanding general (de: Kommandierender General) of an Army corps (1933-1945).

As fixed military formation already in peace-time it was used almost in all European armies after Battle of Ulm in 1805. In Prussia it was introduced by Order of His Majesty (de: Allerhöchste Kabinetts-Order) from November 5, 1816, in order to strengthen the readiness to war.

Pakistan

The

  • Phisterer, Frederick, Statistical Record of the Armies of the United States, Castle Books, 1883, ISBN 0-7858-1585-6.
  • Tsouras, P.G. Changing Orders: The evolution of the World's Armies, 1945 to the Present Facts On File, Inc, 1994. ISBN 0-8160-3122-3
  • Warsaw Pact June 1989 OOB
  1. ^ Kreidberg, Marvin; Henry, Morton (November 1955). History of Military Mobilization (PDF). Washington, DC: Department of the Army. pp. 144–145. Retrieved 30 July 2014. 
  2. ^ Clay, Steven. US Army Order of Battle 1919-1941 Volume 1 The Arms: Major Commands and Infantry Organizations, 1919-1941 (PDF). Fort Leavenworth, Kansas: Combat Studies Institute Press. p. 170. 
  3. ^ Eckhardt, George S. (1991). Vietnam Studies: Command and Control, 1950-1969. Washington, DC: Department of the Army. pp. 52–55. Retrieved 30 July 2014. 
  4. ^ Eve of war Soviet structure
  5. ^ http://www.admfincs.forces.gc.ca/admfincs/subjects/cfao/002-10_e.asp
  6. ^ Sutton, Brigadier John, ed.," Wait For The Waggon". Barnsley, South Yorkshire: Leo Cooper, 1998.
  7. ^ Love, David, A Call To Arms.
  8. ^ "Mission of Public Health Service at USPHS Commissioned Corps". Usphs.gov. 2011-11-14. Retrieved 4 July 2012. 
  9. ^ "NOAA Corps". Noaacorps.noaa.gov. Retrieved 4 July 2012. 
  10. ^ "The Union Army Ambulance Corps". 

References and Further Reading

See also

A Patent Examiner in the US is a member of the Examiner Corps.

Some Global Health Corps and Mercy Corps.

The

Many volunteer municipal or university ambulance, rescue, and first aid squads are known as VACs (volunteer Union Army.[10] GO 147 used "Corps" in one of its standard military senses. However, subsequent formations of non-military ambulance squads continued to use the term, even where they adhere less to paramilitary organizational structure.

In the US, there are non-military, administrative, training and certification Corps for commissioned officers of the government's uniformed services, such as the United States Public Health Service Commissioned Corps and the National Oceanic and Atmospheric Administration Commissioned Corps.[8][9]

In the United Kingdom, the Royal Observer Corps was a civil defence unit from 1925 until disbanded in 1995.

The Salvation Army calls its local units/church "corps" (e.g. The Rockford Temple Corps, The St. Petersburg Citadel Corps), echoing the pseudomilitary name and structure of the organization.

Non-military use

The Corps system is also used in the U.S. Army to group personnel with a common function, but without a regimental system there is less variation in insignia and tradition. These are often referred to as "Branches" and include the Quartermaster Corps, Ordnance Corps, Transportation Corps, Medical Corps, Nurse Corps, Chaplain Corps, Judge Advocate General's Corps, and Finance Corps. Each of these Corps is also considered a "Regiment" for historic purposes but these Regiments have no tactical function.

United States

In Canada, with the integration of the Canadian army into the Canadian Forces, the British Corps model was replaced with personnel branches, defined in Canadian Forces Administrative Orders (CFAOs) as "...cohesive professional groups...based on similarity of military roles, customs and traditions." CFAO 2-10)[5] However, the Armour Branch has continued to use the title Royal Canadian Armoured Corps, the Infantry Branch continued to use the Royal Canadian Infantry Corps designation, and the Artillery Branch uses the term Royal Regiment of Canadian Artillery. When the Army, Royal Canadian Navy, and Royal Canadian Air Force were merged in 1968 to form the Canadian Forces, the Royal Canadian Dental Corps and Royal Canadian Army Medical Corps were deactivated and merged with their Naval and Air Force counterparts to form the Dental Branch (Canadian Forces) and the Canadian Forces Medical Service of the Canadian Forces Health Services Group (CF H Svcs Gp). The Royal Canadian Army Service Corps transport and supply elements were combined with the Royal Canadian Ordnance Corps to form the Logistics Branch The Royal Canadian Army Service Corps clerical trades were merged with the Royal Canadian Army Pay Corps and the Royal Canadian Postal Corps to form the Administration Branch (later merged with the Logistics Branch) [6] Other "corps", included: Canadian Engineer Corps, Signalling Corps, Corps of Guides, Canadian Women's Army Corps, Royal Canadian Army Veterinary Corps, Canadian Forestry Corps, Canadian Provost Corps and Canadian Intelligence Corps.[7]

Canada

In Australia, soldiers belong foremost to a Corps which defines a common function or employment across the army. The Australian Army has a system of coloured lanyards, which each identify a soldier as part of a specific Corps (or sometimes individual battalion). This lanyard is a woven piece of cord which is worn on ceremonial uniforms and dates back to the issue of clasp knives in the early 20th century which were secured to the uniform by a length of cord. If a soldier is posted to a unit outside of their parent corps, except in some circumstances the soldier continues to wear the hat badge and lanyard of their Corps (e.g. a Clerk posted to an infantry battalion would wear the hat badge of the Royal Australian Ordnance Corps but would wear the lanyard of the battalion they are posted to.)

Australia

In the British Army and the armies of many Commonwealth countries, a corps is also a grouping by common function, or an Arm or a Service (e.g. Intelligence Corps, Royal Logistic Corps, Royal Corps of Signals), performing much the same function as a ceremonial infantry or cavalry regiment, with its own cap badge, stable belt, and other insignia and traditions. The Royal Armoured Corps and the Corps of Infantry are looser groupings of independent regiments.

Administrative Corps

The Soviet Air Forces used ground terminology for its formations down to squadron level. As intermediates between the Aviation Division and the Air Army were Corps—these also had three Air Divisions each.

After the war, the Tank and Mechanized Corps were re-rated as divisions. During the reforms of 1956-58, most of the corps were again disbanded to create the new Combined Arms and Tank Armies. A few corps were nevertheless retained, of both patterns. The Vyborg and Archangel Corps of the Leningrad Military District were smaller armies with three low-readiness motorized rifle divisions each. The Category A Unified Corps of the Belarussian Military District (Western TVD/Strategic Direction) and Carpathian Military District (also Western TVD) were of the brigade pattern.

The pre-brigades and support units, with no division structure. Due to this, they are sometimes, informally, referred to as "Brigade Buckets".

Soviet Union

After the Vietnam War, but using the name of "Field Force," to avoid confusion with the ARVN corps areas.[3]

Cold War and 21st Century

During I Marine (later III Amphibious Corps) and V Amphibious Corps. The Army would ultimately designate 25 field corps (I-XVI, XVIII-XXIV, XXXVI and I Armored Corps) during World War II.

World Wars I & II

Although the U.S. Army in the years following the Civil War lacked standing organization at the corps and division levels, it moved swiftly to adopt these during the mobilization for the Spanish-American War in the spring of 1898. On May 7, General Order 36 called for the establishment of seven "army corps" (repeating the nomenclature of the Civil War); an eighth was authorized later that month.[1] Two of these saw action as a unit: the Fifth in Cuba and the Eighth in the Philippines; elements of the Philippine-American War), and like the corps of the Civil War, their lineage ends at that point.

Spanish-American War

In the Confederate States Army, field corps were authorized in November 1862. They were commanded by lieutenant generals and were usually larger than their Union Army counterparts because their divisions contained more brigades, each of which could contain more regiments. All of the Confederate corps at the Battle of Gettysburg, for instance, exceeded 20,000 men. However, for both armies, unit sizes varied dramatically with attrition throughout the war. In Civil War usages, by both sides, it was common to write out the number, thus "Twenty-first Army Corps", a practice that is usually ignored in modern histories of the war.

The first field corps in the Grand Army of the Republic veterans during the Spanish–American War.

Civil War

As of 2014, the active field corps in the U.S. Army are I Corps ("eye core"), III Corps and XVIII Airborne Corps; their lineages derive from three of the corps formed during World War I (I and III Corps) and World War II (XVIII Airborne Corps).

The structure of a field corps in the United States Army is not permanent; many of the units that it commands are allocated to it as needed on an ad hoc basis. On the battlefield, the corps is the highest level of the forces that is concerned with actually fighting and winning the war. Higher levels of command are concerned with administration rather than operations, at least under current doctrine. The corps provides operational direction for the forces under its command.

The XVIII Airborne Corps command group returns home from Operation Iraqi Freedom in 2009

United States

It took command of the International Security Assistance Force in Afghanistan on 4 May 2006. Previously, it was deployed as the headquarters commanding land forces during the Kosovo War in 1999 and also saw service in Bosnia and Herzegovina, commanding the initial stages of the IFOR deployment prior to that in 1996. Otherwise, the only time a British corps headquarters has been operationally deployed since 1945 was II Corps during the Suez Crisis.

The British Army still has a corps headquarters for operational control of forces. I Corps of the British Army of the Rhine was redesignated the Allied Rapid Reaction Corps in 1994 . It is no longer a purely British formation, although the UK is the 'framework nation' and provides most of the staff for the headquarters. A purely national Corps headquarters could be quickly reconstituted if necessary.

When the British Army was expanded from an expeditionary force in the First World War, corps were created to manage the large numbers of divisions. The British corps in World War I included 23 infantry corps and a few mounted corps. The word was adopted for other special formations such as the Officers Training Corps. Military training of teenage boys is undertaken at secondary schools through the Combined Cadet Force, in which participation was compulsory at some schools in the 1950s. Schoolboy jargon called the CCF simply "Corps."

Wellington formed a "corps d'armee" in 1815 for commanding his mixed allied force of four divisions against Napoleon.

United Kingdom

The Polish Armed Forces used Independent Operational Group's in the place of the Corps before and during World War Two. An example would be Independent Operational Group Polesie. The groups, as the name indicates, were more flexible and showed greater capacity to absorb and integrate elements of broken units over a period of just a couple days and keep cohesion during the September Campaign than more traditional army units such as divisions, regiments, or even brigades.

Poland (1938–39)
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