U.S. Air Force F-22 Raptors in Japan Reveal Preparations for High-End Western Pacific Operations.

The deployment of U.S. Air Force F-22 Raptors to Tsuiki Air Base during Keen Sword 27, confirmed by U.S. military imagery released on October 23, 2026, highlights preparations to disperse stealth fighters across Japan and sustain air superiority during a high-end Western Pacific conflict. Operating from an allied base away from their Alaska home station, the Raptors demonstrate how U.S. forces could preserve combat power, complicate enemy targeting, and generate air-dominance sorties from distributed locations in a contested battlespace.

The deployment of U.S. Air Force F-22 Raptors to Tsuiki Air Base during Keen Sword 27 highlights preparations for dispersed, high-end combat operations across the Western Pacific (Picture Source: U.S. Air Force)

The deployment of U.S. Air Force F-22 Raptors to Tsuiki Air Base during Keen Sword 27 is about far more than dogfighting proficiency. On October 23, 2026, an F-22 assigned to the 525th Expeditionary Fighter Squadron, deployed from Joint Base Elmendorf-Richardson, Alaska, prepared for basic fighter maneuvers training at Tsuiki as part of KS27. Imagery released by the U.S. military through DVIDS places one of Washington's premier air-dominance platforms inside an exercise built to increase readiness and interoperability between the U.S. military and Japan Self-Defense Forces while strengthening what the official release calls the “ironclad U.S.-Japan Alliance.”

What gives the Raptor deployment greater strategic weight is the scale and composition of the exercise surrounding it. Japan's Joint Operations Command says KS27 runs from October 19 to 29 and involves approximately 45,000 Japanese personnel and 12,000 U.S. personnel, together with about 260 Japanese aircraft, 120 U.S. aircraft, 40 Japanese vessels and five U.S. vessels. Training extends beyond conventional land, sea and air operations into integrated air and missile defense, anti-ship warfare, cyber operations, information warfare, space, electromagnetic-spectrum operations, logistics, dispersed operations and the protection of critical infrastructure. Civilian airports and ports are also included among the locations available to the exercise.

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That wider framework changes how the F-22 sortie should be interpreted. Basic fighter maneuvers maintain the close-combat handling and tactical proficiency expected of fighter crews, but the more revealing element is the ability to move an Alaska-based Raptor unit into a Japanese operating location and generate sorties from there. The U.S. Air Force describes the F-22 as an air-dominance fighter combining stealth, supercruise, maneuverability and integrated avionics, designed to project air dominance rapidly over long distances and counter forces seeking to deny U.S. access to a battlespace. At Tsuiki, those characteristics are being exercised within an alliance architecture rather than from the aircraft's home station. Tsuiki also sits within Japan's Western Air Defense Force structure and hosts the JASDF's 8th Air Wing, making it an established Japanese fighter operating location rather than a temporary expeditionary strip.

Air Base Survivability Becomes Part of the Fight

The deeper story emerging from KS27 is combat persistence under attack. Since October 22, Japanese and U.S. forces have been conducting joint runway-restoration training as part of the exercise's critical-infrastructure protection activity. Japan says the drills are intended to improve bilateral coordination, interoperability and joint response capabilities in restoring runways, while U.S. reporting describes airfield-damage-repair activity across four Japanese and U.S. air bases. Combined with KS27's explicit training in maneuver and dispersed operations, logistics, communications, cyber, space and the electromagnetic spectrum, the pattern points to preparation for an environment in which allied aircraft may need to keep operating after established bases and support networks have been disrupted. The central problem is no longer only whether an F-22 can defeat another fighter. It is whether that F-22 can land, be serviced, rearmed, receive targeting and command information, relocate when required and return to combat while the wider operating system is under pressure.

China, Taiwan and North Korea Shape the Strategic Environment

That preparation closely reflects the security environment described by Japan itself, although Tokyo's published KS27 material does not identify China or a Taiwan contingency as the exercise's simulated adversary. Japan's 2026 Defense White Paper says China's military activity is expanding beyond the First Island Chain into the western Pacific, notes growing military pressure against Taiwan and describes Beijing's military development and external posture as an unprecedented and Japan's greatest strategic challenge. In that context, the combination of fifth-generation airpower, integrated air and missile defense, anti-ship operations, distributed basing and runway recovery maps closely onto the operational challenges an allied force could face in a high-intensity Western Pacific confrontation. It would be an overstatement to characterize KS27 as a rehearsal for a conflict with China; a more measured assessment is that the exercise is developing capabilities that could also prove relevant in such a contingency.

North Korea creates a second pressure on the same architecture. Japan's 2026 assessment describes Pyongyang's military activity as an increasingly grave and imminent threat and highlights continued work on ballistic missiles, hypersonic systems, cruise missiles, unconventional trajectories and increasingly sophisticated missile employment. Tokyo also assesses that North Korea is pursuing the ability to launch multiple weapons from varied locations and improve operations associated with saturation attacks. For U.S. and Japanese air forces, that threat reinforces the requirement to defend, disperse and rapidly repair the airfields from which advanced fighters operate. A Raptor on the flight line has little operational value if the runway, fuel distribution, communications architecture or maintenance chain supporting it cannot survive the opening stages of a missile campaign.

Distributed Basing Expands the Alliance's Operating Space

KS27 also reveals how U.S.-Japan planning is expanding beyond the concept of fighting from a small collection of large, predictable military bases. Japan's official exercise outline includes civilian airports and ports, along with military installations, public and private land and surrounding maritime and airspace. That does not establish that civilian airports are designated wartime F-22 bases, but it does show an institutional focus on accessing a wider infrastructure network. Combined with dispersed operations training, the approach can complicate an opponent's targeting problem by increasing the number of locations that may support movement, logistics or military activity. It also mirrors a broader U.S. effort to make Pacific airpower less dependent on a handful of fixed hubs. The Alaska-based 525th Expeditionary Fighter Squadron's presence at Tsuiki offers a practical demonstration of that concept: combat aircraft positioned thousands of kilometers from their home installation, operating through an allied base inside the theater.

The geopolitical message extends beyond Japan and the United States. KS27 includes forces or headquarters elements from Australia, Canada, France, Germany, the Netherlands, New Zealand and the Philippines, while Japan's exercise commander has framed the event around integrated operations across land, sea, air, space, cyber, electromagnetic and information domains. At the opening in Ishigaki, Japan's Joint Operations Command emphasized preparation before a crisis, alliance cohesion and the ability to translate political resolve into operational capability and readiness. For Beijing, Pyongyang and Moscow, the deterrent calculation is consequently broader than the number of U.S. fighters permanently based in Japan. It increasingly includes the capacity of Washington to reinforce the theater, the ability of Japan to host and sustain those forces, and the prospect that additional partners could contribute to a wider coalition framework during a regional emergency.

The F-22 photographed at Tsuiki is only the most visible element of that architecture. KS27 suggests that the harder question facing U.S. and Japanese planners is not simply how to secure air superiority, but how to preserve it after airfields, communications networks and logistics nodes come under attack. By coupling Raptor training with dispersed operations, runway restoration, missile defense, cyber, space and multinational integration, Washington and Tokyo are building a force designed not only to enter a contested Western Pacific battlespace, but to remain operational inside it. That is the deeper deterrent signal behind Keen Sword 27: advanced fighters are valuable, but an alliance capable of keeping them flying under sustained pressure is far harder for an adversary to neutralize.

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Written by Teoman S. Nicanci – Defense Analyst, Army Recognition Group

Teoman S. Nicanci holds degrees in Political Science, Comparative and International Politics, and International Relations and Diplomacy from leading Belgian universities, with research focused on Russian strategic behavior, defense technology, and modern warfare. He is a defense analyst at Army Recognition, specializing in the global defense industry, military armament, and emerging defense technologies.