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 -_Unspecified_or_Composite_All-Arms_(NATO_APP-6).svg) |
| a friendly army group |
-_Unspecified_or_Composite_All-Arms_(NATO_APP-6A).svg) |
| a hostile army group |
Anarmy group is amilitary organization consisting of severalfield armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organization handled by a single commander – usually afull general orfield marshal – and it generally includes between 400,000 and 1,000,000 soldiers.
In thePolish Armed Forces and formerSoviet Red Army an army group was known as aFront. The equivalent of an army group in theImperial Japanese Army was a "general army" (Sō-gun (総軍)).
Army groups may be multi-national formations. For example, duringWorld War II, theSouthern Group of Armies (also known as the U.S. 6th Army Group) comprised theU.S. Seventh Army and theFrench First Army; the21st Army Group comprised theBritish Second Army, theCanadian First Army and theUS Ninth Army.
In both Commonwealth and U.S. usage, the number of an army group is expressed in Arabic numerals (e.g., "12th Army Group"), while the number of a field army is spelled out (e.g., "Third Army").
TheFrench Army formed a number ofgroupes d'armées during the First World War.
TheGerman Army formed its first twoHeeresgruppen in 1915, to control forces on the eastern front.[2] A total of eight army groups would ultimately be raised – four for service on each front, with one of the eastern front army groups being a multinational German and Austro-Hungarian formation. Originally the Imperial German army groups were not separate formations, but instead additional responsibilities granted to certain army commanders.Crown Prince Wilhelm for instance, was simultaneously commander of the 5th Army and Army Group German Crown Prince from August 1915 to November 1916.
All eight German army groups were named after their commanders.[3]
TheOttoman Army had three army groups:
A Chinese "army group" was usually equivalent in numbers only to a field army in the terminology of other countries, as the regimental level was sometimes omitted.
The German Army was organized into army groups (Heeresgruppen). Some of these army groups included armies from several Axis countries. For example,Army Group Africa contained both German and Italian corps.
A separate and distinct German military unit (de:Armeegruppe), which is also translated to English asarmy group, describes more temporary groupings of army-sized units, where the command of one of its composite units formed the grouping's command structure. These groupings were usually named after the commander of the unit in question, for example Armeegruppe Weichs, part ofArmy Group B duringOperation Blau in 1942.
During World War II there were six general armies:
In April 1945, theBoei So-Shireibu (translated as "general defense command" or "home defense general headquarters" and similar names) was split into three general armies:
By August 1945, these comprised two million personnel in 55 divisions and numerous smaller independent units. After thesurrender of Japan, the Imperial Japanese Army was dissolved, except for theDai-Ichi So-Gun, which existed until 30 November 1945 as the 1st Demobilization Headquarters.
The Soviet Army was organized intofronts (фронт, pl.фронты) which were often as large as an army group. (SeeList of Soviet fronts in World War II.) Some of the fronts contained Allied formations raised in exile. For example, thePolish First Army was part of the1st Belorussian Front.
TheWestern Allies established six separate army groups during the Second World War, although no more than five existed simultaneously. The army groups were subordinate to the Allied theatre supreme commanders. Led by British and American officers, they included troops from numerous allied nations; the British–American15th Army Group also included Canadian and Polishcorps,divisions from Brazil, India, New Zealand and South Africa and a Greekbrigade. As part ofOperation Quicksilver, the Allies set up a seventh, fictitiousFirst United States Army Group.
During the Cold War, NATO land forces in what was designated the Central Region (most of theFederal Republic of Germany) would have been commanded in wartime by two army groups. UnderAllied Forces Central Europe and alongside air force elements, the two army groups would have been responsible for the defence of Germany against any Soviet/Warsaw Pact invasion. These two principal subordinate commanders had only limited peacetime authorities, and issues such as training, doctrine, logistics, and rules of engagement were largely a national, rather than NATO, responsibility.[4]
The two formations were theNorthern Army Group (NORTHAG) and theCentral Army Group (CENTAG). By World War II and previous standards, these two formations were only armies, as they contained four corps each.[5] NORTHAG consisted, from north to south, ofI (Netherlands) Corps (I (NE) Corps),I German Corps (I (GE) Corps),I (BR) Corps, andI Belgian Corps (I (BE) Corps). Its commander was the British commander of theBritish Army of the Rhine (BAOR). CENTAG consisted, from north to south, ofIII (GE) Corps,V US Corps,VII (US) Corps, andII (GE) Corps in the extreme south of theFederal Republic of Germany. The commander of theU.S. Seventh Army commanded CENTAG.
In November 1991, the NATO heads of state and government adopted the "New Strategic Concept" at the NATO Summit in Rome. This new conceptual orientation led, among other things, to fundamental changes both in the force and integrated command structure. Structural changes began in June 1993, when HQ Central Army Group (CENTAG) atHeidelberg and Northern Army Group (NORTHAG) atMönchengladbach were deactivated and replaced by HeadquartersAllied Land Forces Central Europe (LANDCENT), which was activated at Heidelberg on 1 July 1993.
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