{{Unreferenced, date=October 2008 Operational Group ( pl, Grupa Operacyjna, abbreviated GO) was the highest level of tactical division of the

Polish Army The Land Forces () are the land forces of the Polish Armed Forces. They currently contain some 62,000 active personnel and form many components of the European Union and NATO deployments around the world. Poland's recorded military history stre ...

before and during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...

and the

invasion of Poland The invasion of Poland (1 September – 6 October 1939) was a joint attack on the Republic of Poland by Nazi Germany and the Soviet Union which marked the beginning of World War II. The German invasion began on 1 September 1939, one week af ...

. It was

corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...

-sized, although various Operational Groups varied in size. Operational groups first appeared in Polish tactical scheme during the Polish-Bolshevik War, most probably under the influence of

French Military Mission to Poland The French Military Mission to Poland was an effort by France to aid the nascent Second Polish Republic after it achieved its independence in November 1918, at the end of the First World War. The aim was to provide aid during the Polish-Soviet Wa ...

. After the war they were dissolved. Prior to

, the operational groups were recreated. Initially, in March 1939, they consisted only of staffs formed around existing

commands. According to the Polish mobilization scheme, they were to become mobile reserves of the

Polish armies The following is a list of Polish Armies during World War II, together with their commanders and brigade and division-sized units. For a more detailed list see: Polish army order of battle in 1939. {, border=0 cellpadding=2 , - , width=10 bgc ...

and other major strategic-scale units. One of such groups, the Kutno Operational Group, was planned but never created. Also, in the autumn of 1938, the Independent Operational Group Silesia was created with the purpose of capturing Zaolzie from

Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...

. Some groups were formed during the final mobilization of late August 1939, others were formed during the war as strategic considerations necessitated. Most were attached to armies, several however were independent. * Independent Operational Groups # Independent Operational Group "Polesie" (''Samodzielna Grupa Operacyjna Narew'') under gen.

Franciszek Kleeberg Franciszek Kleeberg (1 February 1888, in Tarnopol – 5 April 1941, near Dresden) was a Polish general. He served in the Austro-Hungarian Army before joining the Polish Legions in World War I and later the Polish Army. During the German Invasion ...

. Created around September 9th-11th. # Independent Operational Group "Narew" (''Samodzielna Grupa Operacyjna Polesie'') under gen. Czesław Młot-Fijałkowski. Created on March 23 # Operational Group "

Wyszków Wyszków (; yi, ווישקאָוו ''Vishkov'') is a town in eastern Poland with 26,500 inhabitants (2018). It is the capital of Wyszków County in Masovian Voivodeship. History The village of Wyszków was first documented in 1203. It was gr ...

" (''Grupa Operacyjna Wyszków'') under gen. Wincenty Kowalski. Created on September 1. # Operational Group "

Grodno Grodno (russian: Гродно, pl, Grodno; lt, Gardinas) or Hrodna ( be, Гродна ), is a city in western Belarus. The city is located on the Neman River, 300 km (186 mi) from Minsk, about 15 km (9 mi) from the Polish b ...

" (''Grupa Operacyjna Grodno'') under gen.

Józef Olszyna-Wilczyński Józef Konstanty Olszyna-Wilczyński (; 27 November 1890 – 22 September 1939) was a Polish general and one of the high-ranking commanders of the Polish Army. A veteran of World War I, the Polish-Ukrainian War and the Polish-Soviet War, he w ...

. Created in early September; disbanded on September 10 before the battle of Grodno begun; most units moved towards Lwów. * Cavalry Operational Group (or Operational Group of Cavalry) # Cavalry Operational Group Abraham (''Grupa Operacyjna Kawalerii Abraham'') under

Roman Abraham Roman Józef Abraham (28 February 1891, Lwów – 26 August 1976, Warsaw) was a Polish cavalry general, commander of the Wielkopolska Cavalry Brigade during the German and Soviet Invasion of Poland in September 1939, and Battle of Bzura comman ...

# Cavalry Operational Group Anders (''Grupa Operacyjna Kawalerii Anders'') under gen.

Władysław Anders ) , birth_name = Władysław Albert Anders , birth_date = , birth_place = Krośniewice-Błonie, Warsaw Governorate, Congress Poland, Russian Empire , death_date = , death_place = London, England, United Kingdom , serviceyears ...

# Cavalry Operational Group No.1 (''Grupa Operacyjna Kawalerii Nr 1'') # Cavalry Operational Group No.2 (''Grupa Operacyjna Kawalerii Nr 2'') * Operational Groups as part of armies # Operational Group "Bielsko"" (''Grupa Operacyjna Bielsko'') under gen.

Mieczysław Boruta-Spiechowicz Mieczysław Ludwik Boruta-Spiechowicz (20 February 1894, in Rzeszów – 13 October 1985, in Zakopane) was a Polish military officer, a general of the Polish Army and a notable member of the post-war anti-communist opposition in Poland. He joine ...

(on September 3 renamed to Operational Group "Boruta") (''Grupa Operacyjna Boruta'') # Operational Group "Czersk" (''Grupa Operacyjna Czersk'') under gen.

Stanisław Grzmot-Skotnicki Stanisław Grzmot-Skotnicki (; 13 January 1894 – 19 September 1939) was a Polish military commander and a general of the Polish Army. During the invasion of Poland of 1939 he commanded the Czersk Operational Group and was among the highest r ...

# Operational Group "

Koło Koło (; during the German occupation called ''Wartbrücken'' in 1940–41, ''Warthbrücken'' in 1941–45) is a town on the Warta River in central Poland with 23,101 inhabitants (2006). It is situated in the Greater Poland Voivodship (since 199 ...

" (''Grupa Operacyjna Koło'') under gen.

Edmund Knoll-Kownacki Gen.bryg. Edmund Stanisław Knoll-Kownacki (1891–1953) was a Polish military officer and a high-ranking commander of the Polish Army. Youth Son of Kazimierz and Maria von Eynatten. After his matura exam in 1908 in Kaluga, he continued his ...

(on September 6 renamed to Operational Group "Knoll-Kownacki") (''Grupa Operacyjna Knoll-Kownacki'') # Operational Group " Piotrków" (''Grupa Operacyjna Piotrków'') under gen.

Wiktor Thommée Wiktor Thommée (1881–1962) was a Polish military commander and a brigadier general of the Polish Army. A veteran of the Great War and the Russian Civil War, he is best known for his command over Piotrków Operational Group and the battle of t ...

(on September 6 renamed to Operational Group "Thommée") (''Grupa Operacyjna Thommée'') # Southern Operational Group (''Południowa Grupa Operacyjna'') under gen.

Stanisław Skwarczyński Stanisław Skwarczyński (1888–1981) was a soldier of the Austro-Hungarian Army, officer of Polish Legions in World War I, and General brygady of the Polish Army. He fought in several conflicts, including World War I, Polish-Czechoslovak War, ...

# Northern Operational Group (''Pólnocna Grupa Operacyjna'') under gen. Jan Kruszewski # Operational Group "

Sieradz Sieradz ( la, Siradia, yi, שעראַדז, שערעדז, שעריץ, german: 1941-45 Schieratz) is a city on the Warta river in central Poland with 40,891 inhabitants (2021). It is the seat of the Sieradz County, situated in the Łódź Voivode ...

" (''Grupa Operacyjna Sieradz'') under gen. Franciszek Dindorf-Ankowicz # Operational Group " Śląsk" (''Samodzielna Grupa Operacyjna Śląsk'') under gen. Jan Jagmin-Sadowski (on September 3 renamed to Operational Group "Jagmin" (''Grupa Operacyjna Jagmin'')) # Eastern Operational Group (''Wschodnia Grupa Operacyjna'') under gen.

Mikołaj Bołtuć Mikołaj Bołtuć (21 December 1893 in Saint Petersburg – 22 September 1939 near Łomianki) was a brigadier-general of the Polish Army, commander of the IV Polish infantry Division during World War II. He was the son of Ignacy Bołtuć, Rus ...

(on September 9 renamed to Operational Group "Bołtuć") (''Grupa Operacyjna Bołtuć'') In addition, during the

in 1939, several other corps-sized units were formed or improvised. All of them were named after their commanding officers: # Operational Group Dreszer (''Grupa Operacyjna Dreszer'') under Rudolf Dreszer # Operational Group Orlik-Łukoski (''Grupa Operacyjn Orlik-Łukoski'') under Kazimierz Orlik-Łukoski # Operational Group Grzmot-Skotnicki (''Grupa Operacyjna Grzmot-Skotnicki'') under

# Operational Group Kareszewicz-Tokarzewski (''Grupa Operacyjna Karaszewicz-Tokarzewski'') under Michał Karaszewicz-Tokarzewski # Operational Group Zaulauf under (''Grupa Operacyjna Zulauf'') Juliusz Zulauf There were also several operational groups created by the

Polish People's Army The Polish People's Army ( pl, Ludowe Wojsko Polskie , LWP) constituted the second formation of the Polish Armed Forces in the East in 1943–1945, and in 1945–1989 the armed forces of the Polish communist state ( from 1952, the Polish Pe ...

(''Ludowe Wojsko Polskie'') after the war in the years 1946-1947.

See also