Expanded U.S.-Japan ground-based anti-ship exercise near Taiwan

Assume the October drill on Yonaguni or nearby Japanese southwest islands proceeds with additional Japanese air-defense or anti-ship systems operating alongside the U.S. NMESIS deployment, as described in local exercise plans. The initiating change is a combined or parallel U.S.-Japan ground-based missile exercise near Taiwan involving anti-ship capabilities beyond a single U.S. launcher movement. Exact Japanese system types, missile quantities, live-fire details, and duration remain unspecified unless later sourced.