Commentary: US war on Iran forces Japan and South Korea to confront geopolitical realities
Why it matters: Japan‑South Korea cooperation becomes critical for regional stability as U.S. focus shifts.
- United States stretches its military resources in the Middle East, risking redeployment of assets from East Asia.
- Japan & South Korea face a strategic crossroads—either align to counter China and North Korea or risk isolation.
- Chinese military expansion heightens regional threat, prompting calls for higher defence budgets in both allies.
- Analysts warn that official defence spending figures may understate actual needs, especially as missile interceptor inventories dwindle.
- Western officials caution that U.S. missile and interceptor stocks are running low after recent heavy use.
The U.S. war on Iran is pulling American military attention away from Asia, forcing Japan and South Korea to decide whether to deepen security cooperation against a rising China and North Korea or to seek accommodation, while both nations must boost defence spending as the U.S. security umbrella thins.



