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857th Bombardment Squadron
The 857th Bombardment Squadron is one of the two predecessors of the 557th Tactical Air Support Squadron, an inactive United States Air Force unit, formed in 1985 by the consolidation of the 857th with another inactive bombardment squadron. It has never been active under its most recent designation. The 857th was a United States Army Air Forces unit. it was first activated in October 1943 as one of the original Consolidated B-24 Liberator squadrons of the 492d Bombardment Group. After deploying to England, the 492d entered the strategic bombing campaign against Germany, but in three months of combat, the 492d Group suffered the most severe losses of an Eighth Air Force bomber group. The 492d Group was withdrawn from combat in August 1944, and the 857th moved on paper to replace the 850th Bombardment Squadron, which was engaged in Operation Carpetbagger, dropping agents and supplies behind German lines, primarily in France. As American forces advanced in France, this spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-24 Liberator
The Consolidated B-24 Liberator is an American heavy bomber, designed by Consolidated Aircraft of San Diego, California. It was known within the company as the Model 32, and some initial production aircraft were laid down as export models designated as various LB-30s, in the Land Bomber design category. At its inception, the B-24 was a modern design featuring a highly efficient shoulder-mounted, high aspect ratio Davis wing. The wing gave the Liberator a high cruise speed, long range and the ability to carry a heavy bomb load. Early RAF Liberators were the first aircraft to cross the Atlantic Ocean as a matter of routine. In comparison with its contemporaries, the B-24 was relatively difficult to fly and had poor low-speed performance; it also had a lower ceiling and was less robust than the Boeing B-17 Flying Fortress. While aircrews tended to prefer the B-17, General Staff favored the B-24 and procured it in huge numbers for a wide variety of roles. At approximately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
859th Bombardment Squadron
The 859th Special Operations Squadron is a reserve unit of the United States Air Force. It was first activated in October 1942 as the 517th Bombardment Squadron, when the Army Air Forces replaced National Guard observation units that had been mobilized and were performing antisubmarine patrols off the Atlantic coastline. A month after its activation, the squadron was redesignated the 12th Antisubmarine Squadron. In August 1943, the Army Air forces began turning the antisubmarine patrol mission over to the Navy and the squadron moved to California, where, as the 859th Bombardment Squadron, it formed the cadre for the 492d Bombardment Group. After deploying to England, the 492d entered the strategic bombing campaign against Germany, but in three months of combat, suffered the most severe losses of an Eighth Air Force bomber group. The 492d Group was withdrawn from combat in August 1944, and the 859th moved on paper to replace the 788th Bombardment Squadron, which was engag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Cobra
Operation Cobra was the codename for an offensive launched by the United States First Army under Lieutenant General Omar Bradley seven weeks after the D-Day landings, during the Normandy campaign of World War II. The intention was to take advantage of the distraction of the Germans by the British and Canadian attacks around Caen in Operation Goodwood,Trew, p. 64 and thereby break through the German defenses that were penning in their forces while the Germans were unbalanced. Once a corridor had been created, the First Army would then be able to advance into Brittany, rolling up the German flanks once free of the constraints of the bocage country. After a slow start, the offensive gathered momentum and German resistance collapsed as scattered remnants of broken units fought to escape to the Seine. Lacking the resources to cope with the situation, the German response was ineffectual and the entire Normandy front soon collapsed. Operation Cobra, together with concurrent offens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interdiction
Interdiction is a military term for the act of delaying, disrupting, or destroying enemy forces or supplies en route to the battle area. A distinction is often made between strategic and tactical interdiction. The former refers to operations whose effects are broad and long-term; tactical operations are designed to affect events rapidly and in a localized area. Other uses The term interdiction is also used in criminology and law enforcement, such as in the U.S. War on Drugs and in immigration. Espionage United States The term interdiction is also used by the NSA when an electronics shipment is secretly intercepted by an intelligence agency (domestic or foreign) for the purpose of implanting bugs before they reach their destination. According to '' Der Spiegel'', the NSA's TAO group is able to divert shipping deliveries to its own "secret workshops" in a method called interdiction, where agents load malware onto the electronics or install malicious hardware that can give U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-Day
The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. The operation began the liberation of France (and later western Europe) and laid the foundations of the Allied victory on the Western Front. Planning for the operation began in 1943. In the months leading up to the invasion, the Allies conducted a substantial military deception, codenamed Operation Bodyguard, to mislead the Germans as to the date and location of the main Allied landings. The weather on D-Day was far from ideal, and the operation had to be delayed 24 hours; a further postponement would have meant a delay of at least two weeks, as the invasion planners had requirements for the phase of the moon, the tides, and the time of day that meant only a few days each month wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Defence And Fortification
300px, Castillo San Felipe de Barajas in Cartagena de Indias, Colombia, an example of an Early Modern coastal defense Coastal defence (or defense) and coastal fortification are measures taken to provide protection against military attack at or near a coastline (or other shoreline), for example, fortifications and coastal artillery. Because an invading enemy normally requires a port or harbour to sustain operations, such defences are usually concentrated around such facilities, or places where such facilities could be constructed. Coastal artillery fortifications generally followed the development of land fortifications, usually incorporating land defences; sometimes separate land defence forts were built to protect coastal forts. Through the middle 19th century, coastal forts could be bastion forts, star forts, polygonal forts, or sea forts, the first three types often with detached gun batteries called "water batteries". Coastal defence weapons throughout history were heav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V-2 Rocket
The V-2 (german: Vergeltungswaffe 2, lit=Retaliation Weapon 2), with the technical name '' Aggregat 4'' (A-4), was the world’s first long-range guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was developed during the Second World War in Nazi Germany as a "vengeance weapon" and assigned to attack Allied cities as retaliation for the Allied bombings of German cities. The rocket also became the first artificial object to travel into space by crossing the Kármán line (edge of space) with the vertical launch of MW 18014 on 20 June 1944. Research into military use of long-range rockets began when the graduate studies of Wernher von Braun attracted the attention of the Wehrmacht. A series of prototypes culminated in the A-4, which went to war as the . Beginning in September 1944, over 3,000 were launched by the Wehrmacht against Allied targets, first London and later Antwerp and Liège. According to a 2011 BBC documentary, the attack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V-1 Flying Bomb
The V-1 flying bomb (german: Vergeltungswaffe 1 "Vengeance Weapon 1") was an early cruise missile. Its official Reich Aviation Ministry () designation was Fi 103. It was also known to the Allies as the buzz bomb or doodlebug and in Germany as (cherry stone) or ( maybug). The V-1 was the first of the ( V-weapons) deployed for the terror bombing of London. It was developed at Peenemünde Army Research Center in 1939 by the at the beginning of the Second World War, and during initial development was known by the codename "Cherry Stone". Because of its limited range, the thousands of V-1 missiles launched into England were fired from launch facilities along the French (Pas-de-Calais) and Dutch coasts. The Wehrmacht first launched the V-1s against London on 13 June 1944, one week after (and prompted by) the successful Allied landings in France. At peak, more than one hundred V-1s a day were fired at southeast England, 9,521 in total, decreasing in number as sites were ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airfield
An aerodrome (Commonwealth English) or airdrome (American English) is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither, and regardless of whether it is for public or private use. Aerodromes include small general aviation airfields, large commercial airports, and military air bases. The term ''airport'' may imply a certain stature (having satisfied certain certification criteria or regulatory requirements) that not all aerodromes may have achieved. That means that all airports are aerodromes, but not all aerodromes are airports. Usage of the term "aerodrome" remains more common in Ireland and Commonwealth nations, and is conversely almost unknown in American English, where the term "airport" is applied almost exclusively. A water aerodrome is an area of open water used regularly by seaplanes, floatplanes or amphibious aircraft for landing and taking off. In formal terminology, as defined by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Overlord
Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Normandy landings. A 1,200-plane airborne assault preceded an amphibious assault involving more than 5,000 vessels. Nearly 160,000 troops crossed the English Channel on 6 June, and more than two million Allied troops were in France by the end of August. The decision to undertake a cross-channel invasion in 1944 was taken at the Trident Conference in Washington in May 1943. General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force, and General Bernard Montgomery was named commander of the 21st Army Group, which comprised all the land forces involved in the invasion. The coast of Normandy of northwestern France was chosen as the site of the invasion, with the Americans assigned to land at sect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF North Pickenham
Royal Air Force North Pickenham or more simply RAF North Pickenham is a former Royal Air Force station located East of Swaffham, Norfolk, England. It was originally opened in 1944 and finally closed in 1967. History USAAF use North Pickenham was constructed in 1942/1943 as an "A" class heavy bomber station. It was handed over to the United States Army Air Forces (USAAF) Eighth Air Force in April 1944. It was assigned USAAF designation Station 143. 492nd Bombardment Group (Heavy) The first USAAF group to use North Pickenham was the 492nd Bombardment Group (Heavy), arriving from Alamogordo AAF, New Mexico on 18 April 1944. The 492nd was assigned to the 14th Combat Bombardment Wing, and the group tail code was a "Circle-U". Its operational squadrons were: * 856th Bombardment Squadron (5Z) * 857th Bombardment Squadron (9H) * 858th Bombardment Squadron (9A) * 859th Bombardment Squadron (X4) The group flew Consolidated B-24 Liberators as part of the Eighth Air Force's str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VIII Bomber Command
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed division algebra. * the first nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
