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II Flak Corps (Germany)
A Flak Corps (, also spelt ) was a massed anti-aircraft artillery, anti-aircraft (AA) artillery formation employed by the ''Luftwaffe'' for anti-aircraft, antitank, and fire support operations in World War II. A ''Flakkorps'' was a flexible organization that was made up of a varying number of AA regiments, brigades, or Flak division, divisions. A total of six flak corps were organized by Germany during the war. The flak corps, while mainly intended to support ground units with concentrated anti-aircraft fire, in many cases provided also antitank gun, antitank support. History Flak corps did not exist before World War II. Until the end of war Germany eventually organized a total of six flak corps, being numbered one through six in Roman numerals (I, II, III, IV, V, VI), plus one short-lived special flak corps. ImageSize = width:580 height:220 PlotArea = width:465 height:160 left:35 bottom:20 AlignBars = early DateFormat = dd/mm/yyyy # European date format Per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Artillery
Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-launched), and air-based weapon systems, in addition to associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, army, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defense. Missile defense, Missile defense is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. Most modern anti-aircraft (AA) weapons systems are optimized for short-, medium-, or long-range air defence, although some systems may incorporate multiple weapons (such as both autocannons and surface-to-air missiles). 'Layered air defence' usually refers to multiple 't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9th Flak Division
The 9th Flak Division () was a Flak division of the German Luftwaffe in World War II which saw action on the Eastern Front (World War II), Eastern Front. It is most notable for its role (and destruction) in the Battle of Stalingrad. Another formation with the same name was deployed to the Eastern Front and saw combat in the Kuban bridgehead. History 9th Air Defense Command In July 1940, Air Defense Command 9 () was formed in German-occupied France, in the ''Luftgau Belgien-Nordfrankreich'' air district. It was staffed with the 30th and 59th Flak Regiments and initially intended to assist Operation Felix, the planned German attack through Francoist Spain, German-aligned Spain against Gibraltar. The initial head of the staff was Gerhard Hoffmann (general), Gerhard Hoffmann, who was replaced on 17 March 1941 by Wilhelm von Renz. First deployment, 1941–43 On 1 September 1941, the 9th Air Defense Command was renamed "9th Flak Division". It remained in German-occupied France un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Army Group B
Army Group B () was the name of four distinct German Army Group, army group commands that saw action during World War II. The first Army Group B was created on 12 October 1939 (from the former Army Group North) and fought in the Battle of France on the northern flank. It was responsible for a part of the German invasion of Belgium (1940), German invasion of Belgium and the majority of the German invasion of the Netherlands. In the later stage of that campaign ("Fall Rot, Case Red"), it again advanced on the German right flank towards the Somme (river), Somme river, the city of Paris and the France–Spain border, Franco-Spanish border. After 16 August 1940, it was deployed to East Prussia and to the General Government in Occupation of Poland (1939–1945), German-occupied Poland. When Operation Barbarossa began on 22 June 1941, Army Group B was renamed on the same day to become "Army Group Center". The second Army Group B came into existence on 9 July 1942, when Army Group South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mönchengladbach
Mönchengladbach (, ) is a List of cities and towns in Germany, city in North Rhine-Westphalia, western Germany, west of the Rhine, halfway between Düsseldorf and the Netherlands, Dutch border. Geography Municipal subdivisions Since 2009, the territory of Mönchengladbach has comprised four (previously ten) boroughs which are subdivided into 44 districts. The boroughs and their associated districts were: * * * * History Name and origins The original name of the city was , by which it is still often known today. To distinguish it from another town of the same name (the present ), it took the name ('Monks’ Gladbach', in reference to the abbey) in 1888. Between 1933 and 1950, it was written ' (short: ), without a hyphen. This spelling was seen as potentially misleading, as it could imply that Gladbach was a borough of Munich (), so consequently the name was changed to in 1950 (and subsequently in 1960) to avoid confusion. The town was founded around Gladbach Abbey i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6th Air Division (Wehrmacht)
The 6th Air Division is an inactive United States Air Force unit. Its last assignment was with the Thirteenth Air Force, based at Clark Air Base, Philippines. It was inactivated on 15 December 1969. Heraldry On a shield per chevron argent and gules, in chief, a stylized silhouetted jet aircraft, issuing from chief, nose toward base azure; in base a sphere with land areas of the first and water areas of the third, grid lines black, over a branch of olive or, between two lightning bolts argent; superimposed overall and flanking the dexter and sinister, two stylized arrows or. (Approved 5 October 1955) History Established as a pursuit wing in 1940, under Northeast Air District (later First Air Force). Deployed to the European Theater of Operations in the summer of 1942, the 6th Fighter Wing was a training organization for VIII Fighter Command in England during 1942/43 where it trained replacement pilots for fighter organizations. After the war, it served in the Canal Zone as par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Świdnica
Świdnica (; ; ) is a city on the Bystrzyca (Oder), Bystrzyca River in south-western Poland in the Lower Silesian Voivodeship. As of 2021, it has a population of 55,413 inhabitants. It is the seat of Świdnica County, and also of the smaller district of Gmina Świdnica, Lower Silesian Voivodeship, Gmina Świdnica (although it is not part of the territory of the latter, as the town forms a separate urban gmina). It is the seventh largest city of the Lower Silesian Voivodeship. Świdnica became part of the Wałbrzych urban agglomeration, agglomeration on 23 January 2014. A city with almost a thousand years of history, recorded in 1070, Świdnica was one of the main cities of Silesia and southwestern Poland in the Middle Ages, the second most important center of culture and art in the region (after Wrocław), a famed brewing center, and in 1291–1392 the capital of an eponymous principality ruled by a local line of the Piast dynasty. The city has a preserved Old Town with several G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kraków
, officially the Royal Capital City of Kraków, is the List of cities and towns in Poland, second-largest and one of the oldest cities in Poland. Situated on the Vistula River in Lesser Poland Voivodeship, the city has a population of 804,237 (2023), with approximately 8 million additional people living within a radius. Kraków was the official capital of Poland until 1596, and has traditionally been one of the leading centres of Polish academic, cultural, and artistic life. Cited as one of Europe's most beautiful cities, its Kraków Old Town, Old Town was declared a UNESCO World Heritage Site in 1978, one of the world's first sites granted the status. The city began as a Hamlet (place), hamlet on Wawel Hill and was a busy trading centre of Central Europe in 985. In 1038, it became the seat of King of Poland, Polish monarchs from the Piast dynasty, and subsequently served as the centre of administration under Jagiellonian dynasty, Jagiellonian kings and of the Polish–Lithuan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Stalingrad
The Battle of Stalingrad ; see . rus, links=on, Сталинградская битва, r=Stalingradskaya bitva, p=stəlʲɪnˈɡratskəjə ˈbʲitvə. (17 July 19422 February 1943) was a major battle on the Eastern Front of World War II, beginning when Nazi Germany and its Axis allies attacked and became locked in a protracted struggle with the Soviet Union for control over the Soviet city of Stalingrad (now known as Volgograd) in southern Russia. The battle was characterized by fierce close-quarters combat and direct assaults on civilians in aerial raids; the battle epitomized urban warfare, being the single largest and costliest urban battle in military history. It was the bloodiest and fiercest battle of the entirety of World War II—and arguably in all of human history—as both sides suffered tremendous casualties amidst ferocious fighting in and around the city. The battle is commonly regarded as the turning point in the European theatre of World War II, as Germany ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donetsk
Donetsk ( , ; ; ), formerly known as Aleksandrovka, Yuzivka (or Hughesovka), Stalin, and Stalino, is an industrial city in eastern Ukraine located on the Kalmius River in Donetsk Oblast, which is currently occupied by Russia as the capital of the Donetsk People's Republic. The population was estimated at in the city core, with over 2 million in the metropolitan area (2011). According to the 2001 census, Donetsk was the fifth-largest city in Ukraine. Administratively, Donetsk has been the centre of Donetsk Oblast, while historically, it is the unofficial capital and largest city of the larger economic and cultural Donets Basin (''Donbas'') region. Donetsk is adjacent to another major city, Makiivka, and along with other surrounding cities forms a major urban sprawl and conurbation in the region. Donetsk has been a major economic, industrial and scientific centre of Ukraine with a high concentration of heavy industries and a skilled workforce. The density of heavy indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17th Flak Division
17 (seventeen) is the natural number following 16 and preceding 18. It is a prime number. 17 was described at MIT as "the least random number", according to the Jargon File. This is supposedly because, in a study where respondents were asked to choose a random number from 1 to 20, 17 was the most common choice. This study has been repeated a number of times. Mathematics 17 is a Leyland number and Leyland prime, using 2 & 3 (23 + 32) and using 4 and 5, using 3 & 4 (34 - 43). 17 is a Fermat prime. 17 is one of six lucky numbers of Euler. Since seventeen is a Fermat prime, regular heptadecagons can be constructed with a compass and unmarked ruler. This was proven by Carl Friedrich Gauss and ultimately led him to choose mathematics over philology for his studies. The minimum possible number of givens for a sudoku puzzle with a unique solution is 17. Geometric properties Two-dimensions *There are seventeen crystallographic space groups in two dimensions. These are some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mariupol
Mariupol is a city in Donetsk Oblast, Ukraine. It is situated on the northern coast (Pryazovia) of the Sea of Azov, at the mouth of the Kalmius, Kalmius River. Prior to the Russian invasion of Ukraine, it was the tenth-largest city in the country and the second-largest city in Donetsk Oblast, with an estimated population of 425,681 people in January 2022; as of August 2023, Ukrainian authorities estimate the population of Mariupol at approximately 120,000. Mariupol has been occupied by Russian forces since May 2022. Historically, the city of Mariupol was a centre for trade and manufacturing, and played a key role in the development of higher education and many businesses and also served as a coastal resort on the Sea of Azov. In 1948, Mariupol was renamed Zhdanov () after Andrei Zhdanov, a native of the city who had become a high-ranking official of the Communist Party of the Soviet Union and a close ally to Joseph Stalin. The name was part of a larger effort to rename cities a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
15th Flak Division
In music, a fifteenth or double octave, abbreviated ''15ma'', is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, it is two octaves. It is referred to as a fifteenth because, in the diatonic scale, there are 15 notes between them if one counts both ends (as is customary). Two octaves (based on the Italian word for eighth) do not make a sixteenth, but a fifteenth. In other contexts, the term ''two octaves'' is likely to be used. For example, if one note has a frequency of 400 Hz, the note a fifteenth above it is at 1600 Hz (''15ma'' ), and the note a fifteenth below is at 100 Hz (''15mb'' ). The ratio of frequencies of two notes a fifteenth apart is therefore 4:1. As the fifteenth is a multiple of octaves, the human ear tends to hear both notes as being essentially "the same", as it does the octave. Like the octave, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
