Kadena Air Base's history dates back to just before theBattle of Okinawa in April 1945, when a local construction firm completed a small airfield namedYara Hikojo near the village of Kadena. The airfield, used by theImperial Japanese Army Air Force, was one of the first targets of theTenth United States Army7th Infantry Division. The United States seized it from the Japanese during the battle.
What the Americans captured was a 4,600 feet (1,400 m) strip of badly damaged coral runway. "The initial work at Kadena was accomplished by the 1901st Aviation Engineer Battalion7th U.S. Infantry Division and Naval Construction Battalion Maintenance Unit CBMU 624 on 4 April",[5] by nightfall the same day, the runway could accept emergency landings. Eight days later, and after some 6 inches (150 mm) of coral were added, the airfield was declared operational and put into immediate service by artillery spotting aircraft. Additional construction was performed by the 807th Engineering Aviation Battalion to improve the airfield forUSAAF fighter and bomber use with fuel tank farms, a new 6,500 feet (2,000 m)bituminous runway, and a 7,500 feet (2,300 m) runway for bomber aircraft, by August.
Kadena airfield was initially under the control ofSeventh Air Force, however on 16 July 1945, HeadquartersEighth Air Force was transferred, without personnel, equipment, or combat elements to the town of Sakugawa, near Kadena fromRAF High Wycombe England. Upon reassignment, its headquarters element absorbed the command staff of the inactivatedXX Bomber Command. Kadena was used by the headquarters staff for nationalists' requirements.
Upon its reassignment to the Pacific Theater, Eighth Air Force was assigned to the U.S. Army Strategic Air Forces with a mission to train newB-29 Superfortress bomber groups arriving from the United States for combat missions against Japan. In the plannedinvasion of Japan, the mission of Eighth Air Force would be to conductstrategic bombing raids from Okinawa. However, theatomic bombings of Japan led to the Japanese surrender before Eighth Air Force saw action in thePacific theater.
The surrender of Japanese forces in theRyukyu Islands came on 7 September. GeneralJoseph Stilwell accepted the surrender in an area that would later become Kadena's Stearley Heights housing area.
317th Troop Carrier Group (August–September 1945) (C-46 Commando,C-47 Skytrain) Assigned to Seventh Air Force in the Philippines. Deployed aircraft to Kadena and flew courier and passenger routes to Japan,Guam,Korea, and the Philippines, and transported freight and personnel in the area.
333d Bombardment Group (Very Heavy) (August 1945 – May 1946) (B-29) Assigned to Eighth Air Force for planned invasion of Japan. Operations terminated before the group could enter combat. For a time after the war the group ferried Allied prisoners of war from Japan to the Philippines. Inactivated May 1946.
346th Bombardment Group (Very Heavy) (August 1945 – June 1946) (B-29) Assigned to Eighth Air Force for planned invasion of Japan. Operations terminated before the group could enter combat. After the war the group participated in several show-of-force missions over Japan and for a time ferried Allied prisoners of war from Okinawa to the Philippines. Inactivated June 1946.
316th Bombardment Wing (September 1945 – June 1948) Assigned to Eighth Air Force for planned invasion of Japan. Operations terminated before the group could enter combat. Reassigned toU.S. Far East Air Forces January 1946. Redesignated as 316th Composite Wing in January 1946, and 316th Bombardment Wing (Very Heavy) in May 1946. Inactivated June 1948.
413th Fighter Group (November 1945 – October 1946) (P-47N) Assigned to Eighth Air Force and served as a part of the air defense and occupation force for the Ryukyu Islands after the war. Inactivated October 1946.
On 7 June 1946, Headquarters Eighth Air Force moved without personnel or equipment toMacDill AAF, Florida. It was replaced by the1st Air Division which directed fighter reconnaissance, and bomber organizations and provided air defense for the Ryukyu Islands until December 1948.
Twentieth Air Force became the command and control organization for Kadena on 16 May 1949.
TheKorean War emphasized the need for maintaining a naval presence on Okinawa. On 15 February 1951, the U.S. Naval Facility, Naha, was activated and later became commissioned on 18 April. Commander Fleet Activities, Ryukyus was commissioned on 8 March 1957. On 15 May 1972, upon reversion of Okinawa to Japanese administration, the two organizations were combined to form Commander Fleet Activities, Okinawa. With the relocations of Commander Fleet Activities, Okinawa to Kadena Air Base on 7 May 1975, the title then became Commander Fleet Activities, Okinawa/US Naval Air Facility, Kadena.
Twentieth Air Force was inactivated in March 1955.Fifth Air Force became the command and control organization for Kadena. Known major postwar USAAF/USAF units assigned to Kadena have been:
6th Bombardment Group (Very Heavy) (June 1947 – October 1948) (B-29) Participated in show-of-force flights over Japan and dropped food and other relief supplies to newly freed Allied prisoners of war. Inactivated October 1948.
71st Tactical Reconnaissance Wing (August 1948 – October 1948) (F-5,F-6, RF-51,RF-61) Equipped with reconnaissance aircraft, flew aerial photographing missions over Japan and southern Korea. Inactivated October 1948. The 71st Air Base Group provided base host unit support for organizations assigned to Kadena.
32d Composite Wing (August 1948 – April 1949) (RB/SB-17G, C-46, RB/SB-29) Replaced 71st Tactical Reconnaissance Wing. Provided photographic reconnaissance and search and rescue support. The 32d Air Base Group provided base host unit support for organizations assigned to Kadena.
6332d Air Base Group (April 1949 – January 1950) (redesignated 6332d Air Base Wing (January 1950 – May 1955), 6313th Air Base Wing (October 1957 – December 1964)) Provided base host unit support for organizations assigned to Kadena.
307th Bombardment Group (Medium) (September 1950 – February 1951) (B-29) Deployed fromMacDill AFB Florida to engage in combat operations during the Korean War. While on Okinawa, the 307th was awarded theRepublic of Korea Presidential Unit Citation for its air strikes against enemy forces in Korea. It was also awarded theDistinguished Unit Citation and several campaign streamers. The 307th BG returned from deployment during February 1951, however elements of the group remained deployed on Okinawa on a semi-permanent basis until 1954.
581st Air Resupply Group (September 1953 – September 1956) (B-29) reassigned from the inactivating 581st Air Resupply and Communications Wing atClark AB, Philippines. Performed unconventional warfare and counterinsurgency psychological operations. Inactivated and mission transferred to U.S. Navy.
At the end of theEisenhower presidency, around 1,700 nuclear weapons were deployed on shore in the Pacific, 800 of which were at Kadena Air Base.[6]
Beginning in 1961, the 18th TFW was sending its tactical squadrons frequently toSouth Vietnam andThailand, initially with its RF-101 reconnaissance jets,[8] and beginning in 1964 with its tactical fighter forces supporting USAF combat missions in theVietnam War.[8]: 257 In 1963, theF-105 Thunderchief replaced the Super Sabres. During theTemporary duty assignment (TDY) deployments to Southeast Asia, the 12th TFS lost four aircraft, the 44th TFS lost one F-105D, and the 67th TFS lost nine aircraft, including three on the first day ofOperation Rolling Thunder. The deployments to Southeast Asia continued until the end of United States involvement in the conflict.
During the1968 Pueblo crisis, the 18th deployed between January and June to Osan AB, South Korea following the North Korean seizure of the vessel. Frequent deployments to South Korea have been performed ever since to maintain the air defense alert mission there.
In 1972, the1st Special Operations Squadron was assigned, bringing their specializedC/MC-130 Hercules aircraft to the wing. The squadron was reassigned in 1978. The reconnaissance mission ended in 1989 with the retirement of the RF-4Cs, and the inactivation of the 15th TRS.
The designation of the wing changed on 1 October 1991 to the 18th Wing with the implementation of the Objective Wing concept. With the objective wing, the mission of the 18th expanded to the Composite Air Wing concept of multiple different wing missions with different aircraft. The mission of the 18th was expanded to include aerial refueling withKC-135 Stratotanker tanker aircraft; and surveillance, warning, command and controlE-3 Sentry, and communications. Added airlift mission in June 1992 with theC-12 Huron, transporting mission critical personnel, high-priority cargo and distinguished visitors. In February 1993, the 18th Wing gained responsibility for coordinating rescue operations in the Western Pacific and Indian Ocean.
In November 2006, the U.S. Army's 1st Battalion,1st Air Defense Artillery Regiment, aPatriot PAC-III unit, deployed to Kadena fromFort Bliss Texas.[9] Originally assigned to31st ADA Brigade of Fort Bliss, they were reassigned to the94th AAMDC,USINDOPACOM. The move was part of theBRAC consolidation of U.S. Army bases and security agreements between the U.S. and Japan. The battalion's mission is to defend the base againsttactical ballistic missiles from North Korea. The deployment was controversial on Okinawa, being greeted with protests.[10]
In late 2023,Nikkei Asia reported that the US Air Force would permanently stationBoeing F-15EX Eagle II jets at Kadena Air Base. That total would be down from the 48 F-15C Eagle jets which were previously permanently stationed there.[11]
An Australian AP-3C Orion at Kadena Air Base in October 2018
In early September 2018, AustralianDefence MinisterChristopher Pyne and New Zealand's Deputy Prime MinisterWinston Peters stated that it was in their interest to aid both Japan and the United States against North Korea with patrol aircraft. These units would provide additional capability to prevent North Korean vessels conducting illegal trading out at sea in violation of UN sanctions.[12] TheRoyal Australian Air Force deployed twoAP-3C aircraft, along with a P-3K2 Orion from theRNZAF. RAAF P-8 Poseidons have subsequently been periodically deployed to Kadena as part ofOperation Argos.[13] RNZAF Orions also periodically operate from Kadena, with four such deployments having been made as of April 2021.[14]
The Royal Canadian Air Force (RCAF)CP-140 Auroras are based in Kadena when conducting surveillance operations against North Korean smuggling missions under Operation Neon.[15]
Lockheed SR-71 side view the first SR-71A-LO delivered (SN 61-7950) 061122-F-1234P-045
Other major units assigned to Kadena since 1954 have been:
313th Air Division (March 1955 – October 1991) Assumed responsibility for air defense of the Ryukyu Islands and tactical operations in the Far East, maintaining assigned forces at the highest possible degree of combat readiness. In addition, it supported Fifth Air Force in the development, planning, and coordination of requirements for future Air Force operations in the Ryukyu Islands. The division also supported numerous exercises such asCope Thunder, Cope Diamond,Team Spirit and Cope North. Provided base host unit support for organizations assigned to Kadena (May 1955 – October 1957, December 1964 – October 1974). The newly considated 18th Wing replaced the 313th Air Division in 1991.
Kadena Task Force (Provisional) (SAC) (May 1955 – May 1958) (RB/ERB-47H) Performed Electronic Reconnaissance andCountermeasures activities.
4252d Strategic Wing (SAC) (January 1965 – April 1970) 376th Strategic Wing (SAC) (April 1970 – August 1973) (B-52, KC-135, EC-135) Activated by SAC at Kadena. Replaced 4252nd Strategic Wing. Conducted B-52 combat operations in Southeast Asia from January 1965 to September 1970, whenArc Light Missions from the base were terminated.[16] The distance to targets in South Vietnam resulted in reduced payload and greater air-refueling demands for Kadena and Guam based B-52s and from April 1967 the USAF began basing B-52s atU-Tapao Royal Thai Navy Airfield, this together with Japanese opposition to the war led to reducing B-52 operations from Kadena.[17] Conducted KC-135 air refueling and RC-135 electronic reconnaissance from April 1970 to 1991. Conducted airborne radio relay operations, April–November 1970, February–June 1971 and March 1972 – August 1973. Until 1991, the wing controlled the 909th Air Refueling Squadron (KC-135A/Q/R) and supported rotational reconnaissance aircraft (TR-1,SR-71) after the inactivation of the 9th SRW in 1974. The Wing was inactivated at Kadena on 30 October 1991 with the drawdown of strategic forces. Its mission was absorbed by the 18th Wing.
9th Strategic Reconnaissance Wing (SAC) (1968–1974) (A-12, SR-71) Deployed fromBeale Air Force Base, California, Performedstrategic reconnaissance over North Vietnam and Laos. In March 1968 SR-71's began arriving at Kadena fromBeale AFB.[18] On 15 March Det OL-8 was declared Operational Ready for SR-71 sorties.[18] The SR-71s averaged approximately one sortie a week for nearly two years. By 1970, the SR-71s were averaging two sorties per week. By 1972, the SR-71 was flying nearly one sortie every day. While deployed on Okinawa, the SR-71s and their aircrew members gained the nicknameHabu (as did the A-12s preceding them) after a southeast Asianpit viper which the Okinawans thought the plane resembled. With the completion of each mission a "Habu" was painted on the bird.[18] The SR 71 mission on Okinawa ended in 1990.
18th Combat Support Wing (1985–1991) The 18 CSW was originally the 18th Combat Support Group of the 18th Tactical Fighter Wing before being elevated to a Wing in 1985. It acted as the installation management command and controlled all the services required to run the installation. With the consolidation of numerous missions into the 18th Wing in 1991, the 18 CSW was downgraded and redesignated the 18th Support Group. It was redesignated again as the 18th Mission Support Group in 2002.
The 18th Wing is the host unit at Kadena AB. In addition, the base hosts associate units from five other Air Force major commands, theUnited States Navy, and otherDepartment of Defense agencies and direct reporting units. Associate units operate more than 20 permanently assigned, forward-based or deployed aircraft from the base on a daily basis.
This733rd Air Mobility Squadron manage all passengers and cargo traveling by air in and out of Kadena. ThisAir Mobility Command unit supports about 650 aircraft arrivals and departures every month, moving more than 12,000 passengers and nearly 3,000 tons of cargo.
ThisAir Intelligence Agency squadron conducts information operations by providing tailored combat intelligence and assessing the security of friendly command, control, communication and computer systems to enhance warfighting survivability, situation awareness and targeting.
The Air Force Housing Management Office (HMO) manages Military Family Housing (MFH) for all service members assigned to Okinawa.[19] Kadena Air Base contains nearly 4,000 family housing units, in apartment, townhouse, and single family home styles.[20]
The mission of NAVCOMM Det Okinawa is to provide communications support for theSeventh Fleet and supporting units, U.S. Naval Forces Japan, U.S. Naval Forces Korea, Defense Information Systems Agency and the Japanese Maritime Self Defense Force. The detachment has four work centers:
TSCCOMM provides telecommunications support for Patrol Wing ONE Det Kadena, deployed patrol squadrons and Marine Wing Detachment
CMS provides communications security (COMSEC) materials and cryptographic equipment to Patrol Squadrons and detachments, and to Commander Amphibious Group One/CTF76, located at White Beach
Naval Radio Transmitter Facility (NRTF) Awase provides HF transmitter support to the fleet and area commanders and LF transmitter support for submarines operating in the Pacific and Indian Oceans
SURTASS supports command and control functions to SURTASS ships operating in the Indian Ocean and Western Pacific.
In June 2013, the government of Japan discovered 22 barrels buried on former base property that tests showed had previously containeddioxins and herbicides. Tests on the surrounding soils found dioxin levels at 8.4 times and groundwater at 280 times the legal limit. The land in question is a soccer field bordering the base's Bob Hope Primary School and Amelia Earhart Intermediate School. Angry parents accused base officials, under base commanders Brigadier General Matt H. Molloy[31] and Brigadier General James B. Hecker, of failing to notify them of the toxins near the school and not investigating into the matter. After the issue was reported in theJapan Times andStars and Stripes, USAF officials tested the soil and water at the schools and said that no excessive toxic substances were found.[32][33]
Soil on the base tested positive for very high levels ofpolychlorinated biphenylchemicals (PCBs), in the thousands of parts per million, much higher than most other contamination sites in the world, according to a report issued in 1987 after an investigation prompted by a small unrelated spill of transformer oil.[34]
30 June 1959: an F-100 from the wingcrashed on Okinawa during a training flight after suffering an engine fire. The pilot successfully ejected and suffered no harm, but the aircraft crashed into a local elementary school, killing 11 students plus six residents of the nearby neighborhood, and injuring 210.[35]
20 July 1972:SR-7161-7978 ran off the runway on its second landing approach due to high crosswinds ahead ofTyphoon Rita, severely damaging the underside of the plane. Both crewmembers were uninjured. The plane was salvaged for usable parts and the rest scrapped in Okinawa.[36]
2 November 1987: RF-4C 66-0416 (15 TRS / 18 TFW) entered a spin at 16,500 feet in a Whiskey area approximately 95 miles Northeast of Kadena. Both crew members ejected. The body of one crewmember was never recovered. The other crew member survived.
11 June 2018: F-15C from the 44th Fighter Squadron crashed into the sea off Okinawa. The pilot was rescued by the JASDF Air Rescue Wing Naha Detachment.[40][41]
9 June 2025: FourJSDF soldiers were injured in an explosion at a storage facility for unexploded ordnance that was being managed by the Okinawa prefectural government inside the base.[42]
^Building the Navy's Bases in World War II, History of the Bureau of Yards and Docks and the Civil Engineer Corps, 1940–1946, Volume II, UNITED STATES GOVERNMENT PRINTING OFFICEWASHINGTON, 1947, p. 402[1]
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