518th Bombardment Squadron
518th may refer to: *518th Air Defense Group, disbanded United States Air Force organization *518th Fighter-Interceptor Squadron, inactive United States Air Force unit *518th Infantry Regiment (United States), Infantry regiment in the Army Reserve See also *518 (number) *518, the year 518 (DXVIII) of the Julian calendar *518 BC The year 518 BC was a year of the Roman calendar, pre-Julian Roman calendar. In the Roman Empire, it was known as year 236 '' Ab urbe condita''. The denomination 518 BC for this year has been used since the early medieval period, when the Anno Do ...

518th Air Defense Group
The 518th Air Defense Group is a disbanded United States Air Force organization. Its last assignment was with the 4707th Air Defense Wing, stationed at Niagara Falls Municipal Airport, New York, where it was inactivated in 1955. The group was originally activated as a support unit for the 465th Bombardment Group at the end of World War II in Italy and then redeployed to the Caribbean, where it supported redeploying units until it was inactivated in 1945. The group was activated once again in 1953, when ADC established it as the headquarters for a dispersed fighter-interceptor squadron and the medical, maintenance, and administrative squadrons supporting it. It was replaced in 1955 when ADC transferred its mission, equipment, and personnel to the 15th Fighter Group in a project that replaced air defense groups commanding fighter squadrons with fighter groups with distinguished records during World War II. History World War II The group was activated shortly before the end of ...
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518th Fighter-Interceptor Squadron
The 518th Fighter-Interceptor Squadron is an inactive United States Air Force unit. Its last assignment was with Air Defense Command's 408th Fighter Group at Klamath Falls Airport, Oregon, where it was inactivated on 1 July 1959. The squadron was first activated during World War II as a dive bomber unit, but was disbanded before participating in combat in a general reorganization of Army Air Forces training units. It was reconstituted during the Cold War as a interceptor aircraft, fighter interceptor unit supporting the air defense of the United States. World War II The squadron (aviation), squadron was activated in April 1943 as the 636th Bombardment Squadron at Key Field, Mississippi, as one of the original squadrons of the 408th Bombardment Group.Maurer, ''Combat Units'', p. 294 In August, along with other Army Air Forces (AAF) single engine dive bomber units, it became a fighter-bomber unit, and was redesignated as the 518th Fighter-Bomber Squadron. The squadron did not r ...
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518th Infantry Regiment (United States)
The 518th Infantry Regiment is an Infantry Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and marine i ... regiment in the Army Reserve. The regiment was constituted 15 July 1946 in the Organized Reserves as the 518th Parachute Infantry and assigned to the 108th Airborne Division. * Activated 6 August 1946 with headquarters at Charlotte, North Carolina * (Organized Reserves redesignated 25 March 1948 as the Organized Reserve Corps; redesignated 9 July 1952 as the Army Reserve) * Reorganized and redesignated 28 February 1951 as the 518th Airborne Infantry * Reorganized and redesignated 1 March 1952 as the 518th Infantry, an element of the 108th Infantry Division * Reorganized and redesignated 30 April 1959 as the 518th Regiment, an element of the 108th Division (Training), with headquarters at ...
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518 (number)
500 (five hundred) is the natural number following 499 and preceding 501. Mathematical properties 500 = 22 × 53. It is an Achilles number and an Harshad number, meaning it is divisible by the sum of its digits. It is the number of planar partitions of 10. Other fields Five hundred is also *the number that many NASCAR races often use at the end of their race names (e.g., Daytona 500), to denote the length of the race (in miles, kilometers or laps). *the longest advertised distance (in miles) of the IndyCar Series and its premier race, the Indianapolis 500. Slang names * Monkey (UK slang for £500; USA slang for $500) Integers from 501 to 599 500s 501 501 = 3 × 167. It is: * the sum of the first 18 primes (a term of the sequence ). * palindromic in bases 9 (6169) and 20 (15120). 502 * 502 = 2 × 251 * vertically symmetric number 503 503 is: * a prime number. * a safe prime. * the sum of three consecutive primes (163 + 167 + 173). * the sum of t ...
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