The Strategic Significance of Joint US-Japan Bomber Exercises: Rebuilding Deterrence in the Pacific in February 2026

From February 16 to 18, 2026, the Japan Air Self-Defense Force's F-15 and F-2 fighter jets conducted joint training with the U.S. Air Force's B-52H strategic bombers. This training took place in international airspace over the South China Sea and the Sea of Japan, amid a notable increase in maritime and aerial activities by China and Russia. This article analyzes the strategic significance of this training and its positioning within the deterrent capabilities of the Japan-U.S. alliance.

Upon examining the details of the training, it is noteworthy that fighter jets from the 7th, 8th, and 9th Air Wings of the Air Self-Defense Force participated. These units are stationed at Hyakuri Air Base, Tsuiki Air Base, and Naha Air Base, respectively, covering the entire Japanese archipelago. In particular, Naha Air Base is crucial for the defense of the southwestern islands, and the participation of the 9th Air Wing can be interpreted as a direct response to the increased activities of China around the Senkaku Islands.

The B-52H bombers were deployed from Andersen Air Force Base in Guam. Guam is an extremely important base in the U.S. military's Indo-Pacific strategy. It is equidistant from Japan, South Korea, and the Philippines, allowing for rapid deployment to the South China Sea, the Korean Peninsula, and the Taiwan Strait. During this training, the B-52H conducted tactical coordination activities with Japanese fighter jets, aiming to enhance interoperability. On February 18, the training was remotely monitored from the command centers in Ichigaya and Yokota, and Japanese authorities received detailed briefings on the operations.

This training is not an isolated event. In December 2025, following joint long-range bomber patrols by Russia and China around the Japanese archipelago, the U.S. and Japanese air forces conducted joint training with the B-52H and F-15J. This training is an extension of that, demonstrating a unified response by Japan and the U.S. to the strengthening of military cooperation between Russia and China.

The choice of training airspace is also strategically important. The South China Sea is a region where friction between Japan and China over the Senkaku Islands frequently occurs, while the Sea of Japan is a major stage for Russia's maritime and aerial activities in the Far East. Conducting training in both maritime areas indicates Japan and the U.S.'s willingness to comprehensively respond to changes in the regional security environment.

The deployment of U.S. strategic bombers in the Pacific serves as a visible deterrent tool. Their long-range power projection capabilities and ability to integrate with allied forces substantiate the effectiveness of the security umbrella provided by Washington. For Japan, the presence of these platforms reaffirms the strength of its mutual defense relationship with the United States.

The backdrop for this training is the ongoing diplomatic crisis between Japan and China that has persisted since November 2025. Prime Minister Sanae Takaichi's statement in the Diet that a Chinese attack on Taiwan could constitute a "crisis situation" for Japan triggered a rapid deterioration in relations between the two countries. China has issued travel warnings to Japan, halted seafood imports, restricted cultural exchanges, and announced in January 2026 a ban on the export of dual-use items for military purposes and restrictions on rare earth exports.

On the military front, on December 6, a Chinese Navy J-15 fighter jet illuminated a Japanese F-15 fighter jet with its fire control radar near the Miyako Strait. This incident prompted a formal protest from Defense Minister Shinjiro Koizumi, and the U.S. also expressed support for Japan. On December 9, two Russian Tu-95 bombers, two Chinese H-6 bombers, and four J-16 fighters passed through the Miyako Strait into the Pacific, conducting joint exercises. In response, on December 10, two U.S. B-52 bombers conducted joint flights with three Japanese F-35 fighters and three F-15 fighters, reaffirming their "strong resolve to prevent attempts to unilaterally change the status quo by force."

On February 13, it was announced that the Japanese government had seized a Chinese fishing vessel in its exclusive economic zone off the coast of Nagasaki. This indicates that tensions over maritime issues between Japan and China continue. Meanwhile, according to a Reuters report on January 27, the Japanese government had advised fishing industry stakeholders to avoid the area around the Senkaku Islands to prevent worsening relations with China since late 2025.

In this context, the Japan-U.S. joint training sends a strategic message that goes beyond mere routine exercises. First, it demonstrates the effectiveness and responsiveness of the Japan-U.S. alliance. Second, it shows the unified response capability of Japan and the U.S. to the strengthening of military cooperation between China and Russia. Third, it confirms that the U.S. commitment to the Indo-Pacific region is unwavering.

The deployment of strategic bombers from Guam signifies that the U.S. can continue operations without exclusively relying on bases in allied countries like Japan and South Korea. This serves as an indirect pressure factor in the regional strategic balance. The location of Andersen Air Force Base allows aircraft, particularly bombers, to rapidly conduct operations toward the South China Sea, the Korean Peninsula, or the Taiwan Strait. At the same time, the U.S. can conduct joint flights with Japan, South Korea, Australia, and the Philippines, demonstrating solidarity with these partners.

The deployment of training units from Japan is also suggestive. The 7th Air Wing at Hyakuri Air Base is responsible for the defense of the capital region, the 8th Air Wing at Tsuiki Air Base covers western Japan and the Korean Peninsula, and the 9th Air Wing at Naha Air Base is responsible for the defense of the southwestern islands. The simultaneous participation of these three air wings indicates that Japan is preparing to comprehensively respond to changes in the security environment across Northeast Asia.

From a tactical perspective, the integrated flights of the B-52H and the Self-Defense Force fighter jets enhanced interoperability. This increases the effectiveness of joint operations in times of crisis. The combination of long-range strike capabilities from bombers and air superiority capabilities from fighters builds a layered deterrent.

In the geopolitical context, this training is closely related to the tensions surrounding the Taiwan Strait. Prime Minister Takaichi's remarks clarified the recognition that a crisis in Taiwan directly impacts Japan's security. This can be interpreted as a concrete application of the collective self-defense rights recognized under the 2015 security legislation. China has strongly opposed this as interference in its internal affairs, but Japan asserts that it remains within the bounds of existing government views.

The U.S. position is also noteworthy. A U.S. State Department spokesperson stated that China's actions do not contribute to regional peace and stability, clearly expressing support for Japan. This reaffirms the U.S.'s consistent position that Article 5 of the Japan-U.S. Security Treaty applies to the Senkaku Islands.

Looking ahead, the frequency and scale of Japan-U.S. joint training are likely to continue to expand. Considering China's military modernization and the expansion of its operational range, as well as the deepening military cooperation with Russia, Japan and the U.S. need to continue demonstrating visible military presence to maintain the reliability of their deterrent capabilities.

Furthermore, the strategic value of bomber task force operations lies in their flexibility. The B-52H possesses both nuclear and conventional power projection capabilities and functions as a launch platform for long-range cruise missiles. By deploying from Guam, the U.S. can maintain rapid response capabilities in the region while strengthening coordination with its allies.

Within Japan, support for strengthening defense capabilities and deepening the Japan-U.S. alliance is growing. The Takaichi administration aims to achieve a defense budget of 2% of GDP and is advancing the possession of counterstrike capabilities. These moves demonstrate Japan's willingness to take greater responsibility for its own defense and also serve to alleviate the strategic burden on the U.S.

In conclusion, the Japan-U.S. joint bomber training in February 2026 is an important example of the adaptability and effectiveness of the Japan-U.S. alliance in the changing security environment of Northeast Asia. In response to the complex challenges of strengthening military cooperation between China and Russia, tensions surrounding the Taiwan Strait, and the Japan-China diplomatic crisis, Japan and the U.S. are enhancing interoperability and deploying visible deterrent capabilities. Such training will continue to play a crucial role in the balance of power in the region. Strengthening the Japan-U.S. alliance is an essential element in maintaining a free and open international order in the Indo-Pacific region.