"...if USA offers concessions to Russia on Ukraine, it would likely exacerbate anxieties in Tokyo about whether Washington could do something similar to China regarding Taiwan"
"...what implications would it have on Japan's plans if the United States threatens to reduce its current [Indo-Pacific] force posture"
"[What if] Washington begins to call into question Japan's role in the alliance"
https://www.rand.org/pubs/commentary/2025/06/us-japan-ties-perfect-like-before-or-changing-it-all.html
🔸Probably explains Japan's recent stance re Venezuela
https://mainichi.jp/english/articles/20260104/p2g/00m/0na/022000c