North Korea criticized Japan defense buildup on Monday, warning it could trigger strong retaliation from neighboring countries. Meanwhile, the Rodong Sinmun, North Korea’s main state newspaper, highlighted Japan’s recent launch of the sixth Taigei-class attack submarine and mass production of the improved Type 12 surface-to-ship missile. Additionally, it described these weapons as preemptive-strike tools with ranges that reach far beyond Japan.
Furthermore, the newspaper called Japan defense buildup a “dangerous” act, labeling the country a former “war criminal nation.” According to the report, Tokyo’s military expansion complicates regional security and accelerates tension under the pretext of responding to threats.
As a result, North Korea’s warning underscores the continuing strain in East Asia, where historical grievances and modern military competition collide. Analysts also say Japan has increased defense spending amid rising concerns over North Korean missile tests and China’s growing military presence in the region.
In particular, the launch of the Taigei-class submarine represents Japan’s latest step in modernizing its maritime defense. Moreover, the Type 12 missile program, produced in greater numbers, enhances Japan’s ability to target potential threats at sea. Consequently, North Korea perceives these developments as offensive rather than defensive.
Additionally, experts note that Japan defense buildup has drawn criticism from Pyongyang before, but the Rodong Sinmun’s language signals heightened frustration. “North Korea considers Japan’s actions provocative, escalating risk of confrontation,” said Lee Min-ho, a security studies professor in Seoul.
Meanwhile, the international community watches closely as tensions rise. At the same time, Japan asserts its defense programs remain defensive and aim to protect its territorial integrity. Tokyo also maintains the build-up addresses North Korea’s missile threat and regional instability.
Going forward, Japan defense buildup could prompt additional diplomatic engagement in the region. Analysts further suggest dialogue and transparency between neighboring states may reduce misunderstandings and potential conflicts. However, North Korea’s statement indicates Pyongyang will continue monitoring Tokyo’s military expansions closely.
Finally, observers stress that repeated warnings may shape Japan’s defense strategy, regional alliances, and the broader East Asian security environment. Consequently, governments in the area are likely evaluating risk, deterrence, and negotiation strategies to prevent escalation.
