The base occupies roughly 4,900 acres on the narrow waist of Okinawa, with a separate 6,300-acre munitions storage area inland. Its defining feature is the pair of staggered parallel runways, 05L/23R and 05R/23L, each 12,100 ft long — about 3,688 m — set 1,352 ft apart at the centrelines; the instrument runway is 300 ft wide, its twin 200 ft. A lettered taxiway grid feeds hardened shelters, nose docks, special-operations hardstands and an upper fighter ramp whose flow-through stands run one to fifty.

The scale is the point. Kadena holds two fighter squadrons’ worth of jets, a tanker squadron, an airborne early warning squadron, rescue helicopters, special operations aircraft, US Navy maritime patrol aircraft, transiting allied traffic and, periodically, carrier air wing jets ashore. Air & Space Forces Magazine has called it the sixth busiest airfield in the Air Force, and its controllers describe working every American service plus Japanese, Australian and NATO movements in one pattern. An airfield manager put it more plainly than any fact sheet: Kadena, she said, is a beast.

The weather shapes everything. Okinawa sits in what aircrew call typhoon alley, and the base runs on the Tropical Cyclone Conditions of Readiness system, holding at TCCOR 4 through the season and ratcheting up as a storm closes. Civil engineers work an A-to-Z checklist for each condition: stripping signage that could become shrapnel, moving vehicles indoors, sandbagging doors, pushing aircraft into hardened shelters. What cannot be sheltered is flown out — when Super Typhoon Maria threatened, eighteen F-15s and eight F-22s went to Yokota, and planning has covered evacuating a hundred aircraft.

Kadena was not built by the Americans. The Imperial Japanese Army completed an airstrip there — recorded in the base’s own history as Naka Hikojo, or Yara Hikojo — shortly before the American landings. On 1 April 1945 the US Tenth Army came ashore on the Hijashi beaches, the stretch of coast now known as Sunabe, in Operation Iceberg, and the airfield fell within hours. What the troops found was a deserted, badly damaged 1,500 m runway surfaced in crushed coral.

Army engineers began emergency repairs the same day and had the strip usable by nightfall. Eight inches of fresh coral later, it was fully operational eight days after capture. A second runway followed by August 1945, establishing the twin-runway layout that survives, vastly enlarged, today.

Kadena became a headquarters almost immediately. Lieutenant General James Doolittle set up the Eighth Air Force command post there on 19 July 1945, staging for an invasion of Japan that never came, and on 7 September the surrender of Japanese forces in the Ryukyus was signed on the base; a peace garden marks the spot. Five years later it went back to war. The 19th Bombardment Group moved up from Guam on 27 June 1950, two days after North Korea crossed the 38th parallel, and B-29s flew Korean War missions from Okinawa until the last bombers left in October 1954. The 18th Fighter-Bomber Wing arrived from Korea on 1 November 1954 and has been there ever since.

Operation Arc Light, the B-52 campaign over Southeast Asia, ran from June 1965 to August 1973 and flew more than 126,000 sorties. Kadena entered it in February 1968, when the counter-offensive after Tet drove the monthly rate to around 1,800 and Andersen and U-Tapao could no longer carry the load alone. Staging heavy bombers from an island still under American administration was politically explosive: a June 1968 memorandum from Under Secretary of the Army David E. McGiffert cited an April poll finding 86 per cent of residents apprehensive about the B-52s at Kadena. Bomber operations there ended in September 1970, when U-Tapao became the sole Arc Light base.

The other Cold War tenant was stranger and quieter. SR-71 Blackbirds first arrived on 8 March 1968, and on 21 March Major Jerome F. O’Malley and Major Edward D. Payne flew the first operational SR-71 sortie from the base. Okinawans watching the long black shape in the circuit compared it to the habu, the island’s venomous pit viper, and the name transferred to the aircraft and its crews alike. Between 1968 and 1972 the detachment went from roughly a weekly mission to nearly a daily flight over hostile territory in Indochina, and Kadena stayed the Blackbird’s forward base in Asia until the type retired on 26 January 1990.

The nuclear dimension sat underneath all of this, hidden at the time. Okinawa under American administration hosted nuclear-capable systems, and the most serious documented accident happened at Naha Air Base — not Kadena — on 19 June 1959, when a Nike Hercules missile carrying a nuclear warhead was accidentally fired during maintenance, killing two soldiers. It stayed secret for decades, described in detail only in 2017 by a former US Army missile maintainer, Robert Roepke.

F-15 Eagles arrived at Kadena in 1979 and defined the base for more than four decades. By the early 2020s the airframes had outlived their intended service lives, and in late 2022 the Air Force began withdrawing the permanent squadrons rather than pay to sustain them. A farewell ceremony followed in April 2023, and the last active-duty F-15C at Kadena flew on 24 January 2025, the same day the 67th Fighter Generation Squadron activated.

In the gap, Kadena has run on rotational fighters. Since late 2022 the base has hosted successive expeditionary squadrons of F-22 Raptors, F-35A Lightning IIs, F-15E Strike Eagles and F-16 Fighting Falcons. In October 2025 the mix was two F-35A squadrons, the 4th from Hill and the 356th from Eielson, plus New Jersey Air National Guard F-16s; in May 2026 twelve F-22s of the 90th Expeditionary Fighter Squadron arrived from Joint Base Elmendorf-Richardson alongside the 27th from Langley.

The permanent answer is the F-15EX Eagle II. In July 2024 the Air Force announced that thirty-six would be based on Okinawa, replacing forty-eight F-15C/Ds across two squadrons, with the 67th Fighter Squadron the first operational unit. Delivery has slipped badly: the original window was March to June 2026, but a strike at Boeing’s St Louis plant from 4 August to 17 November 2025 disrupted production. Testifying to the Senate Armed Services Committee on 21 May 2026, Air Force Secretary Troy Meink indicated the first aircraft would arrive in 2027, with completion in 2028 or 2029. Two familiarisation visits have happened, the most recent on 29 June 2026.

The fighters get the attention, but the wing’s other squadrons are what make Kadena a hub rather than a fighter field. The 909th Air Refueling Squadron, the Young Tigers, flies KC-135 Stratotankers and is Pacific Air Forces’ principal refuelling force in contingencies — the reason American aircraft can cross the western Pacific. The 961st Airborne Air Control Squadron flies the E-3 Sentry, whose rotodome radar tracks surface and airborne activity beyond 250 miles and hands a coherent air picture to everyone else.

Combat search and rescue lives with the 33rd Rescue Squadron, working to the Air Force rescue motto that others may live. Its crews train for low-level flight, hoist work and recovery inside contested airspace. The squadron began converting from the forty-year-old HH-60G Pave Hawk to the HH-60W Jolly Green II when the new helicopters arrived on 26 January 2024, and flew the type’s first Indo-Pacific sortie from Kadena a month later.

Kadena is also home to the 353rd Special Operations Wing, roughly a thousand airmen and the only Air Force special operations unit in the Pacific: the 1st Special Operations Squadron with MC-130J Commando IIs, the 21st with CV-22B Ospreys for long-range infiltration and exfiltration, and the 320th Special Tactics Squadron of combat controllers, pararescuemen and special reconnaissance operators. Behind all of it, the 18th Civil Engineer Group — the largest in the Air Force — maintains 23.4 million square feet of facilities and handles more than fifty explosive ordnance disposal incidents a year, most of it legacy of 1945.

The Ryukyu Islands reverted to Japanese control on 15 May 1972, ending twenty-seven years of direct American administration, but the bases stayed. Fifty years on, Okinawa hosted roughly seventy per cent of the US military facilities in Japan: thirty-two installations covering about eighteen per cent of the island’s land, and around 30,000 American service members among a population of some 1.4 million. Polling found 84 per cent of Okinawans believed the prefecture carried a disproportionate burden.

Noise is the most persistent grievance and the best documented. Residents around Kadena have brought class actions since the early 1980s. On 23 February 2017 the Okinawa branch of the Naha District Court ordered about 30.2 billion yen in damages to 22,048 plaintiffs — the largest award in any Japanese base noise case — while dismissing the demand for a flight injunction on the ground that the Japanese government cannot halt an act performed by a third party over which it has no authority. On 23 January 2026 the same court awarded roughly 16.3 million dollars in a further suit brought in 2022 by 5,028 plaintiffs, finding psychological harm and sleep disruption amounting to considerable mental distress — and again declining to restrict flying.

Accidents sharpen all of it, and the F-100 that hit Miyamori Elementary School in 1959 remains the defining case, commemorated every year. Land return is the other long negotiation: under the Special Action Committee on Okinawa process and later realignment talks, Japan and the United States agreed to return facilities south of Kadena and to move the Navy ramp to the far side of the runways as a noise-abatement measure, alongside the 1996 joint committee agreement on noise. Progress has been slow enough that successive governors keep demanding a dramatic cut in the footprint.