Koizumi’s in Australia again. Japan is becoming less quasi, more ally

Japan's elevation of Australia from 'quasi-ally' to formal ally status, coupled with rapid iteration of defence ministerial visits and explicit strategic-alignment rhetoric, materially strengthens Pillar 7 (Alliance). This represents institutionalisation of the Quad-adjacent coalition and reduces strategic isolation risk in a Taiwan or Hormuz crisis. The deepening Japan–Australia tie also signals coalition resilience against Chinese coercion, reinforcing decoupling incentives (Pillar 5) by demonstrating allied commitment to shared Indo-Pacific order.