Japan Moves in AI Infrastructure War: Fujitsu and NVIDIA Announce Strengthened AI Infrastructure Cooperation. The competitive landscape of AI industry is entering a new phase -- the weight of competition is moving not just to model performance but to supporting infrastructure. The US is building a massive ecosystem combining chips and cloud centered on NVIDIA; China is reinforcing technological sovereignty through domestic semiconductors and integrated LLMs. Between these two superpowers, Japan has made a quiet but meaningful move. Fujitsu-NVIDIA partnership: Fujitsu will integrate NVIDIA AI infrastructure with Fujitsu enterprise IT capabilities targeting Japanese enterprise customers in regulated industries including financial services, healthcare, and manufacturing. NVIDIA gains Fujitsu Japanese enterprise distribution and the legitimacy of a 90-year-old institution; Fujitsu gains NVIDIA technology leadership for the AI era. Japan strategic significance: Japan is positioning as a third pole in AI infrastructure -- neither the US hyperscaler model nor the China state-directed model, but a private enterprise plus government collaboration model emphasizing trustworthiness and sustainability; investments from SoftBank, Toyota, and government agencies in domestic AI infrastructure signal Japan seriousness about AI sovereignty.