The 42nd Attack Squadron is a dormant
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
unit assigned to the
25th Attack Group and formerly located at
Creech Air Force Base
Creech Air Force Base is a United States Air Force (USAF) command and control facility in Clark County, Nevada used "to engage in daily Overseas Contingency Operations …of remotely piloted aircraft systems which fly missions across the globe." ...
near
Indian Springs, Nevada
Indian Springs is an unincorporated town and a census-designated place located on U.S. Route 95 next to Creech Air Force Base in northwestern Clark County and southern Nevada.
The population was 991 at the 2010 census.
History
The community wa ...
. It flew the
General Atomics MQ-9 Reaper
The General Atomics MQ-9 Reaper (sometimes called Predator B) is an unmanned aerial vehicle (UAV) capable of remotely controlled or autonomous flight operations developed by General Atomics Aeronautical Systems (GA-ASI) primarily for the Unit ...
unmanned aerial vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller ...
. The 42nd oversaw the training and combat deployment of aerial vehicle and sensor operators assigned to the Reaper.
Created as the first operational MQ-9 Reaper squadron in 2006, the squadron flew its final sortie and was subsequently placed in a dormant status on 31 January 2020.
History
World War I
The squadron was organized as the 42nd Aero Squadron on 17 June 1917, shortly after the United States declared war on Germany. Based at
Camp Kelly
Kelly Field (formerly Kelly Air Force Base) is a Joint-Use facility located in San Antonio, Texas. It was originally named after George E. M. Kelly, the first member of the U.S. military killed in the crash of an airplane he was piloting.
In ...
, Texas, the squadron flight-trained new pilots as part of the
Air Service until demobilized on 21 February 1919.
Training between the wars
The squadron was reconstituted in 1922 and became the 42nd School Squadron in January 1923 as part of the 10th School Group at
Kelly Field
Kelly Field (formerly Kelly Air Force Base) is a Joint-Use facility located in San Antonio, Texas. It was originally named after George E. M. Kelly, the first member of the U.S. military killed in the crash of an airplane he was piloting.
In ...
. In 1924 its lineage was consolidated with that of the 42nd Aero Squadron. The 42nd School Squadron continued its flying training role as part of the
Air Corps in 1926, and was assigned to the Advanced Flying School at Kelly Field in 1931.
On 1 March 1935, with the activation of the
General Headquarters Air Force
The United States Army Air Corps (USAAC) was the aerial warfare service component of the United States Army between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical ri ...
, the squadron was redesignated the 42nd Bombardment Squadron, although it remained a training squadron at Kelly until its inactivation in September 1936.
It was organized once again only a month later, as a
Regular Army
A regular army is the official army of a state or country (the official armed forces), contrasting with irregulars, irregular forces, such as volunteer irregular militias, private armies, mercenary, mercenaries, etc. A regular army usually has the ...
inactive unit assigned to the
Eighth Corps Area
A Corps area was a geographically-based organizational structure (military district) of the United States Army used to accomplish administrative, training and tactical tasks from 1920 to 1942. Each corps area included divisions of the Regular Army ...
, on 23 October 1936.
[ These units remained inactive, but had ]Organized Reserve
The United States Army Reserve (USAR) is a reserve force of the United States Army. Together, the Army Reserve and the Army National Guard constitute the Army element of the reserve components of the United States Armed Forces.
Since July 2020, ...
officers assigned for training.
World War II
In September 1939, the squadron existed only as an inactive cadre of Organized Reserve
The United States Army Reserve (USAR) is a reserve force of the United States Army. Together, the Army Reserve and the Army National Guard constitute the Army element of the reserve components of the United States Armed Forces.
Since July 2020, ...
officers, centered on Brownsville Municipal Airport
Brownsville/South Padre Island International Airport is east of downtown Brownsville, Cameron County, Texas.
The Brownsville/South Padre Island International Airport serves two airlines, six air taxis and offers three fixed-base operations ...
, Texas. The squadron was reactivated on 1 February 1940 as part of the expansion of the Air Corps anticipating U.S. participation in World War II. It became part of the 11th Bombardment Group based at Hickam Field Hickam may refer to:
;Surname
*Homer Hickam (born 1943), American author, Vietnam veteran, and a former NASA engineer
** October Sky: The Homer Hickam Story, 1999 American biographical film
*Horace Meek Hickam (1885–1934), pioneer airpower advoca ...
, Hawaii. Initially flying Douglas B-18 Bolo
The Douglas B-18 Bolo is an American heavy bomber which served with the United States Army Air Corps and the Royal Canadian Air Force (as the Digby) during the late 1930s and early 1940s. The Bolo was developed by the Douglas Aircraft Company f ...
s, the squadron was converting to Boeing B-17 Flying Fortress
The Boeing B-17 Flying Fortress is a four-engined heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Relatively fast and high-flying for a bomber of its era, the B-17 was used primarily in the European Theater ...
es when Hickam was attacked by Japanese carrier aircraft as part of the attack on Pearl Harbor
The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the naval base at Pearl Harbor in Honolulu, Territory of Hawaii, j ...
.
The 42nd Squadron deployed with the 11th Bombardment Group
An international call prefix, international dial-out code or international direct dial code (IDD code) is a trunk prefix that indicates an international phone call. In the dialling sequence, the prefix precedes the country calling code (and, fur ...
to Espiritu Santo
Espiritu Santo (, ; ) is the largest island in the nation of Vanuatu, with an area of and a population of around 40,000 according to the 2009 census.
Geography
The island belongs to the archipelago of the New Hebrides in the Pacific region o ...
, where it participated in the Guadalcanal Campaign
The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by American forces, was a military campaign fought between 7 August 1942 and 9 February 1943 on and around the island of Guadalcanal in th ...
. It conducted long-range reconnaissance and bombing missions throughout the South, Southwest, Central, and Western Pacific areas until the end of the war, converting to Consolidated 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 des ...
bombers in 1943.
In 1946, while based on Guam
Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
, the 42nd BS was briefly equipped with Boeing B-29 Superfortress
The Boeing B-29 Superfortress is an American four-engined propeller-driven heavy bomber, designed by Boeing and flown primarily by the United States during World War II and the Korean War. Named in allusion to its predecessor, the B-17 Fl ...
es, but had no aircraft or flying mission from 1947 to its inactivation on in 1948.
Strategic Air Command
The squadron was reactivated as a unit of the United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
on 1 December 1948. Assigned to the 11th Bombardment Group as part of the Strategic Air Command
Strategic Air Command (SAC) was both a United States Department of Defense Specified Command and a United States Air Force (USAF) Major Command responsible for command and control of the strategic bomber and intercontinental ballistic missile ...
, it flew Convair B-36 Peacemaker
The Convair B-36 "Peacemaker" is a strategic bomber that was built by Convair and operated by the United States Air Force (USAF) from 1949 to 1959. The B-36 is the largest mass-produced piston-engined aircraft ever built. It had the longest win ...
intercontinental bombers from Carswell Air Force Base
Carswell Air Force Base is a former United States Air Force (USAF) base, located northwest of Fort Worth, Texas. For most of its operational lifetime, the base's mission was to train and support heavy strategic bombing groups and wings.
Carswe ...
, Texas. In 1957 it moved to Altus Air Force Base
Altus Air Force Base (Altus AFB, AAFB) is a United States Air Force base located approximately east-northeast of Altus, Oklahoma.
The host unit at Altus AFB is the 97th Air Mobility Wing (97 AMW), assigned to the Nineteenth Air Force (19 AF) ...
, Oklahoma, to convert to Boeing B-52 Stratofortress
The Boeing B-52 Stratofortress is an American long-range, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the United States Air ...
es.
In 1960 was reassigned to the 4043rd Strategic Wing
The 17th Training Wing (17 TRW) is a United States Air Force unit assigned to the Air Education and Training Command
Air Education and Training Command (AETC) is one of the nine Major Commands (MAJCOM) of the United States Air Force (USAF) ...
, being re-equipped with B-52E intercontinental heavy bombers. The squadron moved to Wright-Patterson Air Force Base
Wright-Patterson Air Force Base (WPAFB) is a United States Air Force base and census-designated place just east of Dayton, Ohio, in Greene County, Ohio, Greene and Montgomery County, Ohio, Montgomery counties. It includes both Wright and Patte ...
, Ohio by SAC to disperse its heavy bomber force. Conducted worldwide strategic bombardment training missions and providing nuclear deterrent. Was inactivated in 1963 when SAC inactivated its strategic wings, replacing them with permanent Air Force Wings. Squadron was inactivated with its aircraft, personnel and equipment transferred to the 34th Bombardment Squadron.
Unmanned aerial vehicles
On 9 November 2006, the squadron was redesignated the 42nd Attack Squadron and reactivated at Creech Air Force Base
Creech Air Force Base is a United States Air Force (USAF) command and control facility in Clark County, Nevada used "to engage in daily Overseas Contingency Operations …of remotely piloted aircraft systems which fly missions across the globe." ...
, Nevada, initially as part of the 57th Wing
The 57th Wing (57 WG) is an operational unit of the United States Air Force (USAF) Warfare Center, stationed at Nellis Air Force Base, Nevada.
The 57 WG's mission is to provide well trained and well equipped combat forces ready to deploy ...
before being assigned as one of the six unmanned aerial vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller ...
squadrons of the 432nd Wing
The 432nd Wing is a United States Air Force unit assigned to Air Combat Command at Creech Air Force Base near Indian Springs, Nevada. It flies General Atomics MQ-9 Reaper and RQ-170 Sentinel Unmanned aerial vehicles.
The group operates unmanne ...
, and the only squadron designated as an attack squadron.
The 42nd received its first General Atomics MQ-9 Reaper
The General Atomics MQ-9 Reaper (sometimes called Predator B) is an unmanned aerial vehicle (UAV) capable of remotely controlled or autonomous flight operations developed by General Atomics Aeronautical Systems (GA-ASI) primarily for the Unit ...
on 13 March 2007. Officially combat-operational in Afghanistan since September 2007, the typical MQ-9 system consists of several aircraft, a ground control station, communications equipment/links, spares, and active duty and/or contractor personnel. The crew consists of one unmanned aerial system pilot, one sensor operator and one mission intelligence coordinator.
Lineage
; 42nd Aero Squadron
* Organized as the 42nd Aero Squadron on 13 June 1917
* Demobilized on 21 February 1919
* Reconstituted on 8 April 1924 and consolidated with the 42nd School Squadron as the 42nd School Squadron[
; 42nd Attack Squadron
* Authorized 10 June 1922 as the 42nd Squadron (School)
: Organized on 5 July 1922
: Redesignated 42nd School Squadron on 25 January 1923
: Consolidated with the 42nd Aero Squadron on 8 April 1924
: Redesignated 42nd Bombardment Squadron on 1 March 1935
: Inactivated on 1 September 1936
* Organized as a Regular Army Inactive unit on 23 November 1936][
* Redesignated 42nd Bombardment Squadron (Medium) on 22 December 1939
: Activated on 1 February 1940
: Redesignated 42nd Bombardment Squadron (Heavy) on 11 December 1940
: Redesignated 42nd Bombardment Squadron, Heavy c. 1 August 1944
: Redesignated 42nd Bombardment Squadron, Very Heavy on 30 April 1946
: Inactivated on 20 October 1948
* Redesignated 42nd Bomb Squadron, Heavy and activated on 1 December 1948
: Discontinued and inactivated on 1 February 1963
* Redesignated 42nd Attack Squadron and activated on 9 November 2006][
: Placed in dormant status on 1 February 2020
]
Assignments
* Unknown, 13 June 1917 – 21 February 1919 (probably Post Headquarters, Kelly Field and Wilbur Wright Field)
* 10th School Group, 5 July 1922
* Air Corps Advanced Flying School, 16 July 1931
* 3rd Wing, GHQ Air Force, 1 March 1935 – 1 September 1936 (attached to Air Corps Advanced Flying School)
* Eighth Corps Area as a Regular Army Inactive unit on 23 November 1936[
* ]11th Bombardment Group
An international call prefix, international dial-out code or international direct dial code (IDD code) is a trunk prefix that indicates an international phone call. In the dialling sequence, the prefix precedes the country calling code (and, fur ...
, 1 February 1940 – 20 October 1948
* 11th Bombardment Group, 1 December 1948 (attached to 11th Bombardment Wing after 16 February 1951)
* 11th Bombardment Wing, 16 June 1952
* 4043rd Strategic Wing
The 17th Training Wing (17 TRW) is a United States Air Force unit assigned to the Air Education and Training Command
Air Education and Training Command (AETC) is one of the nine Major Commands (MAJCOM) of the United States Air Force (USAF) ...
, 1 June 1960
* 57th Operations Group, 9 November 2006
* 432nd Operations Group
The 432nd Operations Group (432 OG) is an active flying component of the United States Air Force's 432nd Wing, stationed at Creech Air Force Base, Nevada.
The unit employs unmanned aerial vehicles to support operational needs worldwide and dep ...
, 1 May 2007[
* 25th Attack Group, 12 July 2019
]
Stations
* Camp Kelly, Texas, 13 June 1917
* Wilbur Wright Field
Wilbur Wright Field was a military installation and an airfield used as a World War I pilot, mechanic, and armorer training facility and, under different designations, conducted United States Army Air Corps and Air Forces flight testing. Loca ...
, Ohio, 25 August 1917 – 21 February 1919
* Kelly Field, Texas, 5 July 1922 – 1 September 1936
* Brownsville Municipal Airport
Brownsville/South Padre Island International Airport is east of downtown Brownsville, Cameron County, Texas.
The Brownsville/South Padre Island International Airport serves two airlines, six air taxis and offers three fixed-base operations ...
, Texas as a Regular Army Inactive unit on 23 November 1936[
* Hickam Field, Hawaii, 1 February 1940
* ]Kualoa Airfield
Kualoa Airfield is a former wartime airfield on Oahu, Hawaii. Part of it is now the Kualoa Regional Park.
See also
* Hawaii World War II Army Airfields
During World War II, the United States Army Air Forces fought the Empire of Japan in the C ...
, Hawaii, 5 June 1942
* Mokuleia Airfield
Dillingham Airfield is a public and military use airport located two nautical miles (4 km) west of the central business district of Mokulēia, in Honolulu County. Federal Aviation Administration. Effective May 31, 2012. on the No ...
, Hawaii, 8 July 1942
* Plaine Des Gaiacs Airfield
Plaine Des Gaiacs Airfield is a former World War II airfield on New Caledonia in the South Pacific. It is located at Plaine Des Gaiacs near the village of Pouembout. The airfield was also known as De Gaiacs and was named for the Gaiac tree that ...
, New Caledonia
)
, anthem = ""
, image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg
, map_alt = Location of New Caledonia
, map_caption = Location of New Caledonia
, mapsize = 290px
, subdivision_type = Sovereign st ...
, 22 July 1942
* Luganville Airfield
Luganville Airfield or Bomber Field #3 is a former World War II airfield on the island of Espiritu Santo in the New Hebrides Islands at the Espiritu Santo Naval Base.
History
World War II
The Seabees of the 40th Naval Construction Battalion arr ...
, Espiritu Santo, New Hebrides
New Hebrides, officially the New Hebrides Condominium (french: link=no, Condominium des Nouvelles-Hébrides, "Condominium of the New Hebrides") and named after the Hebrides Scottish archipelago, was the colonial name for the island group ...
, 23 November 1942
* Kualoa Point Field, Hawaii, 8 April 1943
* Funafuti Airfield
Funafuti International Airport is an airport in Funafuti, in the capital city of the island nation of Tuvalu. It is the sole international airport in Tuvalu. Fiji Airways (trading as Fiji Link) operates between Suva and Funafuti. Air Kiribati pr ...
, Nanumea
Nanumea is the northwesternmost atoll in the Polynesian nation of Tuvalu, a group of nine coral atolls and islands spread over about of the Pacific Ocean just south of the equator and west of the International Date Line. Nanumea is with a popul ...
, Gilbert Islands
The Gilbert Islands ( gil, Tungaru;Reilly Ridgell. ''Pacific Nations and Territories: The Islands of Micronesia, Melanesia, and Polynesia.'' 3rd. Ed. Honolulu: Bess Press, 1995. p. 95. formerly Kingsmill or King's-Mill IslandsVery often, this n ...
, 9 November 1943
* Mokuleia Field, Hawaii, 9 January 1944
* Kahuku Army Air Field
Kahuku Army Air Field is a former wartime airfield in Hawaii. It was located in the northern part of the Island of Oahu.
History
World War II
Possibly developed as an emergency field dating to the 1930s, but it was not until the United States en ...
, Hawaii, 19 March 1944
* Mokuleia Field, Hawaii, 13 June 1944
* Agana Airfield
Antonio B. Won Pat International Airport , also known as Guam International Airport, is an airport located in Tamuning and Barrigada, east of the capital city of Hagåtña (formerly Agana) in the United States territory of Guam. The airport is ...
, Guam
Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
, Marianas Islands, 22 September 1944
* Yontan Air Base, Okinawa
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi).
Naha is the capital and largest city ...
, Ryukyu Islands
The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni ...
, 2 July 1945
* Fort William McKinley
Fort Andres Bonifacio (formerly named Fort William McKinley) is the site of the national headquarters of the Philippine Army (Headquarters Philippine Army or HPA) located in Metro Manila, Philippines. It is located near the national headquarter ...
, Luzon
Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as ...
, Philippines, 11 December 1945
* Northwest Field (Guam)
Northwest Field (historically Northwest Guam Air Force Base) is a military airfield in Guam. Built in 1945 during World War II, the airfield was used as a bomber base during and after the war until it was closed in 1949.
Units deployed to the ...
(later Harmon Field), Guam, 15 May 1946 – 20 October 1948
* Carswell Air Force Base, Texas, 1 December 1948
* Altus Air Force Base, Oklahoma, 13 December 1957 – 1 June 1960
* Wright-Patterson Air Force Base, Ohio, 1 June 1960 – 1 February 1963
* Creech Air Force Base, Nevada. 9 November 2006 – 1 February 2020[
]
Aircraft
* Standard J-1
The Standard J is a two-seat basic trainer two-bay biplane produced in the United States from 1916 to 1918, powered by a four-cylinder inline Hall-Scott A-7a engine. It was constructed from wood with wire bracing and fabric covering. The J-1 ...
, 1917–1919
* Curtiss JN-4
The Curtiss JN "Jenny" was a series of biplanes built by the Curtiss Aeroplane Company of Hammondsport, New York, later the Curtiss Aeroplane and Motor Company. Although the Curtiss JN series was originally produced as a training aircraft for th ...
, 1917–1919
* Airco DH.4
The Aircraft Manufacturing Company Limited (Airco) was an early British aircraft manufacturer. Established during 1912, it grew rapidly during the First World War, referring to itself as the largest aircraft company in the world by 1918.
Air ...
, 1917–1919, 1923–1931
* Douglas O-2
The Douglas O-2 was a 1920s American observation aircraft built by the Douglas Aircraft Company.
Development
The important family of Douglas observation aircraft sprang from two XO-2 prototypes, the first of which was powered by the 420 hp ...
, 1926–1933
* Curtiss O-11 Falcon, 1930–1932
* Thomas-Morse O-19
The Thomas-Morse O-19 was an American observation biplane built by the Thomas-Morse Aircraft Company for the United States Army Air Corps.
Development
The O-19 was based on the earlier Thomas-Morse O-6 biplane. It was a conventional two-seat ...
, 1930–1935
* Keystone B-3
The Keystone B-3A was a bomber aircraft developed for the United States Army Air Corps by Keystone Aircraft in the late 1920s.
Design and development
The B-3 was originally ordered as the LB-10A (a single-tail modification of the Keystone LB-6) ...
, 1935–1936
* Keystone B-4, 1935–1936
* Keystone B-5, 1935–1936
* Douglas B-18 Bolo, 1940–1941
* Boeing B-17 Flying Fortress, 1941–1943
* Consolidated B-24 Liberator, 1943–1945
* Boeing B-29 Superfortress, 1946
* Convair B-36 Peacemaker, 1949–1957
* Boeing B-52 Stratofortress, 1958–1963
* General Atomics MQ-1 Predator, 2006–2013
* General Atomics MQ-9 Reaper, 2006–present[
]
Decorations
*Distinguished Unit Citation
The Presidential Unit Citation (PUC), originally called the Distinguished Unit Citation, is awarded to units of the uniformed services of the United States, and those of allied countries, for extraordinary heroism in action against an armed enem ...
:South Pacific, 31 July-30 November 1942
*Navy Presidential Unit Citation
The Presidential Unit Citation (PUC), originally called the Distinguished Unit Citation, is awarded to units of the uniformed services of the United States, and those of allied countries, for extraordinary heroism in action against an armed enem ...
:Pacific Theater, 7 August-9 December 1942
* Air Force Outstanding Unit Awards
:6 August 1954 – 15 July 1957
:27 October 1958 – 1 June 1960
:28 May 2019
*Meritorious Unit Award
The Air Force Meritorious Unit Award or MUA is a mid level unit award of the United States Air Force. Established in 2004, the award recognizes those units who demonstrate exceptionally meritorious conduct in direct support of combat operations. E ...
:15 November 2019
See also
* List of American aero squadrons
This is a partial list of original Air Service, United States Army "Aero Squadrons" before and during World War I. Units formed after 1 January 1919, are not listed.
Aero Squadrons were the designation of the first United States Army aviation ...
* List of B-52 Units of the United States Air Force
The Boeing B-52 Stratofortress has been operational with the United States Air Force since 5 June, 1955. This list is of the units it was assigned to, and the bases it was stationed.
In addition to the USAF, A single RB-52B (52-008) was flown ...
References
Bibliography
*
*
*
*
Further reading
*Las Vegas Review-Journal
The ''Las Vegas Review-Journal'' is a daily subscription newspaper published in Las Vegas, Nevada, since 1909. It is the largest circulating daily newspaper in Nevada and one of two daily newspapers in the Las Vegas area.
The ''Review-Journal'' ...
, 14 March 2007, Page 3B
External links
*Dumboski, Andrew, A1C, USAF
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Sign ...
.
First attack squadron stands up at Creech AFB
, Nellis AFB Public Affairs, 17 November 2006. Retrieved on 27 January 2007.
*Defense Update.
, Defense Update, 2007. Retrieved on 6 May 2007.
{{Strategic Air Command
Military units and formations in Nevada
Indian Springs, Nevada
042
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.
In mathematics
Four is the smallest c ...