Japan's First Post-War Launch of an Anti-Ship Missile Outside Its Territory — A Turning Point in Northeast Asian Security and North Korea's Military Provocations

On May 6, 2026, at Cape Kiriri in Paoay, Ilocos Norte, northern Luzon, the Japan Ground Self-Defense Force launched two Type-88 SSM anti-ship missiles, sinking a target ship located approximately 75 kilometers offshore in just six minutes. This marked the first time since World War II that Japan has fired anti-ship missiles outside its own territory, delivering a strong shock to the international community, including Beijing, as a historic turning point in Japan's post-war defense posture.

This exercise was conducted as part of the U.S.-Philippines joint military exercise "Balikatan 2026" (April 20 - May 8), which saw approximately 17,000 participants, the largest scale in history. The breakdown included about 10,000 U.S. troops, with approximately 1,400 combat troops from Japan participating fully for the first time, along with forces from Australia, Canada, France, New Zealand, and the United Kingdom in this multinational joint training. The target was the retired corvette "BRP Quezon," which was commissioned as the U.S. Navy's minesweeper "USS Vigilance" in 1944 and engaged in combat against Japan during World War II, later transferred to the Philippine Navy in 1967. Ironically, this historically significant ship was sunk by Japan's missiles, creating a symbolic scene.

During a joint press conference after the successful launch, Defense Minister Shinjiro Koizumi and Philippine Secretary of National Defense Teodoro emphasized that they are "building deterrence against common threats," with Secretary Teodoro stating, "Such actions should have been taken much earlier." Additionally, Philippine President Marcos observed the exercise remotely from the military headquarters in Quezon City, showing strong support for the deepening of Japan-Philippines security cooperation.

The Type-88 SSM is a truck-mounted coastal defense anti-ship weapon developed by Mitsubishi Heavy Industries, with a range of approximately 180 kilometers (112 miles). The overseas operation of this weapon, which had previously been limited to domestic training, is a realization of the "counterstrike capability" specified in the revised national security strategy of December 2022, clearly indicating a qualitative shift in Japan's defense policy from "defensive defense" to "proactive deterrence."

At the same time, it is noteworthy that the Japan Maritime Self-Defense Force's ShinMaywa US-2 rescue amphibious aircraft participated for the first time in a casualty evacuation training conducted off the coast of Palawan in the South China Sea. On April 27, the US-2 coordinated with the U.S. Navy's dock landing ship "Ashland" (LSD-48) to train practical maritime medical transport procedures. Furthermore, the JMSDF's helicopter-equipped destroyer "Ise," transport ship "Shimikita," destroyer "Ikazuchi," and C-130H transport aircraft were also deployed to the Philippines, marking one of Japan's largest overseas military deployments since the war.

In response to this historic exercise, Chinese Foreign Ministry spokesperson Lin Jian condemned it fiercely during a regular press conference on May 6, stating, "This is another example of the acceleration of militarization by Japan's right-wing forces," and criticized, "Not only has Japan, an aggressor nation, not deeply reflected on its historical crimes, but it is also deploying offensive missiles overseas under the pretext of security cooperation." Since Prime Minister Sanae Takaichi hinted at "military intervention in the event of a Taiwan emergency" last November, Japan-China relations have deteriorated sharply, and this missile launch has further deepened the strategic distrust between the two countries.

In the Balikatan exercise, Tomahawk cruise missiles were launched for the first time within the Philippines from the U.S. Army's Typhon medium-range missile system, highlighting a tactical shift centered on missile warfare. Additionally, the 3rd Marine Littoral Regiment based in Hawaii deployed NMESIS (Naval Mobile Expeditionary Standoff Anti-Ship Missile System) and MADIS (Marine Air Defense Integrated System), demonstrating a new operational concept that combines island defense with dispersed precision strikes. The Luzon Strait, located between Taiwan and the Philippines, has significantly increased in importance as a strategic chokepoint against China's expansion into the South China Sea, and the geographical configuration of this exercise itself serves as a clear strategic signal.

The security environment in Northeast Asia is also rapidly deteriorating, particularly on the Korean Peninsula. On May 8, the Korean Central News Agency (KCNA) reported that Supreme Leader Kim Jong-un visited a major munitions factory to inspect the production status of newly developed 155mm self-propelled howitzers for three battalions. This new type of self-propelled artillery has a range of over 60 kilometers and is scheduled to be deployed to long-range artillery units near the military demarcation line within the year. The Seoul metropolitan area is located approximately 40 to 50 kilometers from the military demarcation line, putting a major urban area of about 10 million people directly in the line of fire.

KCNA reported Kim's statement that "the excellent mobility, high combat environment information processing capability, and automatic firing system of this new artillery will fundamentally improve our artillery capabilities." Furthermore, Kim stated that various operational and tactical missile systems and powerful multiple rocket launcher systems are also planned to be deployed along the border, clearly indicating a deliberate escalation of military tension on the Korean Peninsula.

In parallel, North Korea conducted sea trials for its first domestically produced destroyer "Chae Hyun" and ordered its delivery to the navy by mid-June. Photos from KCNA show Kim Jong-un's teenage daughter aboard the destroyer, drawing attention as a political performance supporting the analysis by South Korean intelligence that "she is being considered as a successor." The destroyer "Chae Hyun" is North Korea's largest and most advanced surface combatant, and an incident occurred during last year's launch ceremony where the second ship of the same class was damaged.

These developments align with North Korea's recent announcement of a revised constitution, which completely removed references to "peaceful unification" and redefined South Korea as "the most hostile nation." In January 2024, Kim Jong-un instructed the removal of the concept of inter-Korean unification from the constitution, fundamentally abandoning the long-held aspiration of the previous administration for "unification of the Korean Peninsula." The progressive government of South Korea hopes to resume dialogue and has taken preemptive measures to ease tensions, such as stopping loudspeaker broadcasts at the border, but North Korea has consistently rejected such appeasement efforts.

In the broader regional context, the People's Liberation Army Navy of China demonstrated the largest maritime military presence in modern East Asian history by simultaneously deploying over 100 naval vessels and Coast Guard ships around the Yellow Sea, East China Sea, South China Sea, and Taiwan Strait in early December 2025. This deployment is not an incidental training exercise but a display of command and control capabilities to simultaneously manage multiple operational theaters, indicating that Beijing is shifting its strategy from episodic intimidation to sustained forward maritime pressure.

Currently, the People's Liberation Army Navy has grown into the world's largest fleet, boasting over 370 vessels, forming the material basis for China's maritime expansion strategy. This rapid expansion is closely tied to President Xi Jinping's vision of the "great rejuvenation of the Chinese nation," demonstrating that military modernization is inseparable from the regime's legitimacy. The large-scale deployment in December 2025 can also be interpreted as a clear response from China to the strategic commitments of the United States, especially following President Trump’s declaration to "defend Taiwan like never before."

In summary, the developments as of May 2026 indicate that Northeast Asia has entered an extremely dangerous phase, with multiple strategic fault lines being activated simultaneously. The qualitative shift in Japan's defense posture, the escalation of North Korea's military provocations, and the normalization of China's large-scale maritime presence are not independent events but are interlinked and amplified under the larger structural framework of U.S.-China strategic competition. In particular, the area around the Luzon Strait, connecting the Taiwan Strait and the South China Sea, remains a critical risk point where accidental conflicts could escalate into great power wars, necessitating continued close monitoring.