Rethinking U.S.-Japan security in a multipolar nuclear age: systemic risks and de-escalation pathways beyond deterrence

Okinawan and Pacific Islander communities have long resisted U.S. military expansion, framing it as a continuation of colonial dispossession and environmental degradation. Their resistance is rooted in traditional knowledge that prioritizes harmony with land and sea, contrasting with the extractive logic of militarization. The U.S.-Japan security framework ignores these voices, treating Indigenous lands as strategic assets rather than sovereign territories with inherent rights.

The U.S.-Japan security alliance was forged in the aftermath of WWII, with the 1951 San Francisco Peace Treaty embedding Japan within the U.S. nuclear umbrella. This historical context explains Japan's current dilemma: balancing pacifism with the need for deterrence. The 1960 U.S.-Japan Security Treaty and the 2015 reinterpretation of Article 9 further institutionalized Japan's role as a 'client state' in U.S. military strategy, obscuring Japan's potential for autonomous defense policy.

East Asian security traditions emphasize 'comprehensive security' (综合安全), which includes economic, environmental, and social dimensions beyond military power. Japan's pacifist constitution reflects a cultural aversion to war, while China's 'new security concept' advocates for mutual security. These frameworks contrast with the U.S. doctrine of 'extended deterrence,' which prioritizes unilateral dominance. A cross-cultural approach would integrate these diverse security paradigms to foster mutual trust.

The 'two-peer' nuclear era introduces new risks, including hypersonic missiles that reduce decision-making time to minutes, undermining MAD stability. Studies by the Bulletin of the Atomic Scientists warn that the proliferation of such technologies increases the likelihood of accidental escalation. The lack of crisis communication mechanisms between nuclear-armed states further exacerbates these risks, as demonstrated by near-misses like the 1983 Soviet nuclear false alarm.

Japanese art forms like haiku and Noh theater often explore themes of impermanence and the futility of war, reflecting a cultural ethos that resists militarization. Similarly, Indigenous Pacific Islander cosmologies view land and sea as sacred entities, not strategic assets. These artistic and spiritual traditions offer alternative frameworks for security that prioritize harmony over domination. The absence of these perspectives in mainstream discourse reflects a broader devaluation of non-material values in geopolitics.

Scenario modeling by the RAND Corporation suggests that in a 'two-peer' nuclear era, even limited conflicts could escalate into global catastrophe due to miscalculation or cyberattacks on command-and-control systems. The lack of arms control mechanisms between the U.S. and China further increases risks. Future security frameworks must prioritize crisis de-escalation, confidence-building measures, and the phasing out of first-strike capabilities to avoid systemic collapse.

Okinawan activists, Marshallese nuclear test survivors, and Japanese peace movements have long challenged the U.S.-Japan security alliance, yet their voices are excluded from mainstream narratives. Women in these movements, such as the 'Okinawa Women Act Against Military Violence,' highlight the gendered impacts of militarization, including sexual violence and economic marginalization. These perspectives reveal the alliance's role in perpetuating structural violence against vulnerable communities.