On May 3, 2026, the streets of Tokyo were filled with protesters marking Constitution Memorial Day, not with celebration, but with a sense of profound unease. Demonstrators carried placards reading "Against War" and "Stop the Military Expansion," directed at the administration of Prime Minister Sanae Takaichi. This domestic friction reflects a growing international anxiety as Japan appears to decisively shed its post-WWII identity as a pacifist state in favor of a more assertive, and potentially more dangerous, regional role.
Since the Takaichi government assumed power, Japan has accelerated its "remilitarization" ambitions with startling speed. The deployment of long-range missiles capable of reaching China’s eastern coast and the cabinet’s decision to allow the export of lethal weaponry signal a fundamental departure from the country’s "exclusive defense" doctrine. By deepening military ties with the Philippines and other regional actors, Tokyo is not only hollowing out its Peace Constitution but also introducing new geopolitical risks to the Indo-Pacific.
In a landmark discussion, scholars from China, Indonesia, and South Korea have voiced collective concern over this shift. Zhu Qingxiu of the Chinese Academy of Social Sciences argues that Japan has entered its most significant postwar turning point, moving from a paradigm of "peace through diplomacy" to "peace through strength." This transition, according to Zhu, creates a profound sense of insecurity among neighboring nations and risks reviving the specter of camp-based confrontation similar to the Cold War era.
From Southeast Asia, Hampe Arnaldo Russell of the University of Indonesia emphasizes the need for transparency. He suggests that while nations have a right to self-defense, Japan’s moves are increasingly viewed through the lens of US-led containment strategies against China. This perception risks eroding the central role of ASEAN in regional affairs, as smaller nations are forced to navigate the increasingly sharp divides between major powers.
South Korean researcher Lee Sang-hyun notes that the international order is becoming more fragmented and competitive. He observes that while economic interdependence remains a reality, the rules-based order established after 1945 is being challenged by nationalist sentiments and strategic anxiety. For South Korea, the challenge lies in balancing pragmatic diplomacy with the reality of a rearmed Japan and an unpredictable regional security environment.
There is also a growing concern regarding the impact of these policies on the younger generation. In the Philippines, for example, massive economic aid and military equipment transfers from Japan are seen by some as tools to dilute historical memories of WWII aggression. Scholars worry that if geopolitical narratives supersede historical education, the youth of the Indo-Pacific may lose the objective framework necessary to pursue lasting peace and cooperation.