Japan deploys combat troops to Philippines for first time since WWII

Japan's Ground Self-Defence Force joining the US-Philippines Salaknib exercise marks the first deployment of Japanese combat troops to the Philippines since World War II — a historically and legally significant threshold crossing. Combined with Australia and New Zealand's participation, this signals the consolidation of a de facto Indo-Pacific coalition with explicit China-deterrence architecture. The structural shift is that Japan is transitioning from a bilateral US-Japan security posture to active participation in multilateral forward-deployed exercises in the South China Sea's northern approaches, compressing the geographic buffer between Japanese forces and potential Taiwan contingencies.