Sustainable by Design: Technology, Responsibility, and the Future of Defence

Fujitsu helps Defence organisations enhance operational efficiency and resilience while reducing environmental impact. As AI and high-performance computing reshape missions, we’re proving that advanced capability and sustainability can progress together. Our technologies perform at scale while cutting energy use, enabling defence innovation that’s as sustainable as it is secure.

One example showcased at DSEI was the FUJITSU-MONAKA processor – a next-generation Arm-based semiconductor set to cut power consumption in specific applications. Built using advanced 2-nanometre fabrication, FUJITSU-MONAKA is engineered to reduce data-centre emissions and improve carbon efficiency at the edge. It marks a major step forward in low-energy computing, setting a new benchmark for how performance, mission-readiness, and sustainability can come together.

Beyond efficiency, sustainability is now central to how defence prepares, operates, and collaborates. From reducing the environmental footprint of data-intensive missions to extending the lifecycle of critical assets, Fujitsu’s 5S Partnership Framework ensures progress never comes at the planet’s expense. We’re helping defence organisations adopt circular design principles – modernising infrastructure, optimising resource use, and building systems that evolve sustainably over time.

This commitment extends to people and partnerships. Working with academia, industry, and government, Fujitsu is advancing research into greener computing and sustainable procurement – ensuring the technologies that protect us also protect our shared environment. Grounded in the Fujitsu Technology and Service Vision, we’re creating new value through the collaboration between people and AI – driving sustainable innovation that benefits both defence and society.

At Fujitsu, sustainability extends far beyond technology. Our DSEI UK 2025 stand was created with reuse in mind. Once the event concluded, it was donated to local not-for-profit organisations, ensuring the materials continue to deliver value rather than becoming waste. This reflects our commitment to circularity, collaboration, and social inclusion – values that sit at the very heart of our sustainability agenda.

Across every dimension of our work, we’re helping defence organisations modernise responsibly. We believe that long-term advantage depends on minimising energy demand, maximising efficiency, and embedding sustainability into every decision.
Fujitsu’s presence at DSEI 2025 showed how innovation and sustainability combine to drive a more responsible defence future.

Earlier this year Fujitsu announced its Advancing Net Positive Agenda, developed and researched by Economist Impact. It is a first-of-its-kind toolkit designed to help business leaders understand how to go beyond carbon footprint reduction and progress toward Net Positive.