1000 Days,The Budget & UK Defence Spending

The threat of conflict – an abstract idea in recent decades – is rapidly becoming real. The Defence Secretary has warned that Britain must be ready for potential conflict within little more than 1,000 days. Alongside this, households are being advised to keep three days of food and water for emergencies. These messages bring national preparedness into everyday life and give Wednesday’s Budget a particular urgency.

They also raise a fundamental question: how will government respond with the funding and policy needed to strengthen Britain’s security?

At Barossa Advisory, we believe this Budget should establish a credible connection between defence commitments, resilient infrastructure and the capital required to support both.

First, we need a funded path towards higher defence spending. The UK’s ambition to reach 3% of GDP is an important milestone towards NATO’s commitment of at least 3.5% for core defence by 2035. Wednesday should provide greater clarity on the timetable, the resources available now and the commitments that follow.

Long-term targets matter, but preparedness requires investment today. Businesses need confidence to expand capacity, recruit specialist people and strengthen supply chains. Investors need a credible policy framework against which to assess opportunities and commit capital.

Second, we need an integrated approach to national resilience. Defence depends on the civilian systems that sustain the country: energy, water, food, communications, transport and digital infrastructure. NATO also recognises this need – requiring that, by 2035, members dedicate a further 1.5% of GDP to critical infrastructure, network protection and civil preparedness, alongside core defence spending. However, this investment isn’t just about NATO commitments – it’s about strengthening the domestic systems on which economic activity and daily life, in addition to military readiness, depend.

These systems are interconnected. A cyberattack affecting electricity or communications can disrupt water supplies, food distribution and essential services. Resilience therefore requires coordinated investment across physical infrastructure, cyber security, backup capacity and secure supply chains.

Household preparedness has a role, but it must be supported by sustained action from government, infrastructure operators and industry. The Budget should demonstrate how spending and policy will reinforce those responsibilities, with clear priorities and accountable delivery.

Third, we must mobilise private capital alongside public funding. Reports of additional resources for the National Wealth Fund and British Business Bank are encouraging. The important questions are what is additional, when it can be deployed and which businesses and projects can access it.

Companies need different forms of finance as they develop and grow. Technology development may require equity, manufacturing expansion may need equipment finance, and established operations may support debt. Infrastructure projects require funding suited to their development risks and long operating lives. The Budget should ensure government-backed investment programmes can address these different needs, using targeted co-investment, guarantees and lending support to attract private capital.

Alongside this, a clear, funded path for government spending would give businesses and investors greater confidence in future demand. Delivering the Defence Investment Plan, with transparent funding commitments and realistic timelines, would help investors assess where to commit capital. Public funding should support commercially viable investment, with clear accountability for taxpayers’ money.

The Budget cannot resolve every vulnerability. It can, however, establish a coherent direction, commit resources and give businesses and investors greater confidence to act.

We will assess Wednesday’s announcements against three priorities: a credible defence funding trajectory, investment in interconnected national resilience, and practical measures to mobilise capital.

The seriousness of the warnings demands a corresponding seriousness of response. Britain needs the financial and industrial foundations of greater security to be built now.