Oracle front-runner for Japan air-gapped cloud deal

Oracle has emerged as the frontrunner to build Japan an air-gapped cloud system, pulling ahead of rivals Amazon, Microsoft and Google. The proposed network would be completely sealed off from the open internet to house the most sensitive government data. Oracle shares rose on the news.

The push for a secure vault is driven by Washington, which wants Tokyo to harden its cyber defences against Chinese hacking before sharing further intelligence. As the US and Japan deepen their military cooperation to deter Beijing, a secure government cloud is seen as a prerequisite for passing sensitive material without fear of leaks. The longer-term goal is integrating Japan more closely into allied intelligence-sharing networks like the Five Eyes.

Oracle’s pitch relies heavily on security and the close ties between founder Larry Ellison and Donald Trump. However, the contract is not yet final. Tokyo could still decide to split the work across several vendors rather than awarding the entire project to a single company.

The sovereign cloud premium

The Japanese contract is a high-profile example of a broader shift that carries direct implications for Europe. Governments are increasingly demanding sovereign cloud systems they control, rejecting open platforms managed from abroad. Britain recently underscored this mood by labelling US cloud providers as critical to its financial system.

Oracle executives have actively leaned into this demand, arguing that the real advantage lies in the data itself, not just the underlying AI models, and that customers want strict control over where that information sits. Across the continent, European laboratories like Finland’s NestAI are responding to this same dynamic by building military-grade systems designed for outright state ownership.

The surge in defence budgets is pulling major tech firms deeper into national security projects. The Pentagon recently paused a cyber-audit rule, further opening the door for private sector involvement in sensitive infrastructure. For Oracle, securing the Japan vault would represent a marquee win in a crowded and highly guarded market. For the broader tech sector, it signals that defence spending and geopolitical trust are now decisive factors in the global cloud wars.