Why US defence strategy may push South Korea, Japan towards ‘radical’ security realignment

South China Morning PostCenter-RightEN 1 min read 100% complete by Maria SiowJanuary 28, 2026 at 11:28 AM

AI Summary

short article 1 min

A new US defense strategy emphasizing "limited support" for allies is expected to push South Korea and Japan towards greater military self-reliance. The US National Defence Strategy (NDS), released by the Department of Defense, calls on allies to take "primary responsibility" for their own defense, reflecting a shift in focus away from the Indo-Pacific region. Analysts warn this realignment could weaken deterrence, particularly for South Korea against North Korea, and cause a "radical swing" in regional security. The NDS reiterates the US view that allies should increase defense spending, suggesting a new global standard of 5% of GDP. This strategy, stemming from an "America-first" perspective, is prompting concerns about the future of US alliances in Asia.

Key Entities & Roles

Key Player Opposition Context

Europe 30% Pentagon 40% Indo-Pacific region 40% National Security Strategy 50% North Korea 60% Donald Trump ×260% United States Defence Department 70% Japan ×270% National Defence Strategy ×380% South Korea ×280% United States ×790%

Keywords

us defence strategy 90% security realignment 80% japan 70% military self-reliance 70% south korea 70% defence spending 60% deterrence 60% national defence strategy 50% alliances 50% indo-pacific region 40%