Chancellor John Healey is preparing to allocate £20.4billion through state-backed funds to boost British military spending ahead of his debut Budget tomorrow.
Treasury plans indicate that an additional £15.4billion will be directed to the National Wealth Fund, alongside £5billion for the British Business Bank. The funding drive is designed to help Britain reach the Nato target of lifting defence expenditure to 3.5 per cent of gross domestic product by 2035.
Under government accounting rules, money channelled through public financial institutions is classified as capital investment rather than day-to-day departmental expenditure. That distinction allows the Treasury to expand military programmes without officially breaking strict fiscal limits on current borrowing.
However, financial commentator Alex Brummer has warned that using state lenders amounts to smoke and mirrors funding that cannot deliver genuine national security. Writing on the eve of the fiscal announcement, Brummer argued that the strategy turns national defence into an off-balance sheet item and represents disguised borrowing paid for on the never-never.

National Wealth Fund and military spending
Brummer pointed out that diverting resources into defence fundamentally alters the founding remit of both state finance bodies. Labour's general election manifesto established the National Wealth Fund specifically to support investments in ports, hydrogen infrastructure and regional industrial clusters, without any reference to military projects. Similarly, the British Business Bank was created to provide loans and commercial backing for small companies and domestic innovation.
While shifting money towards advanced military hardware such as aerial drones may create the appearance of making progress towards Nato goals, Brummer warned it neglects critical operational shortfalls. Britain's Armed Forces remain dangerously short of regular personnel, with no equivalent to the trained reservist regiments maintained by European allies such as the Netherlands.
Brummer added that off-balance sheet investments cannot solve pressing battlefield requirements. The funds will not cover urgent orders for anti-ballistic missile defence, orbital satellite shields, or the day-to-day running costs required to keep Royal Air Force aircraft operating on active patrol over the Arabian Gulf.
The budgetary gymnastics highlight the severe economic constraints facing Prime Minister Andy Burnham. Burnham remains heavily constrained by nervous bond markets, leaving the Treasury with almost no fiscal headroom after accounting for rising debt interest and ballooning welfare spending.
Healey was appointed Chancellor after previously resigning from Sir Keir Starmer's Cabinet during a dispute over military funding with former chancellor Rachel Reeves. That Cabinet split played a pivotal role in ending Starmer's leadership and propelling Burnham to 10 Downing Street.
Anthropic valuation and public offering plans
The scrutiny over state spending comes as artificial intelligence startup Anthropic prepares for a landmark initial public offering on New York's Nasdaq exchange. The flotation could value the software company at as much as $1.5 trillion, or roughly £1.1 trillion, representing one of the fastest corporate ascents in Wall Street history.
Anthropic was established in 2021 by a group of researchers who split from OpenAI, the maker of ChatGPT. The company has since gained massive commercial traction, securing contracts with more than half of the Fortune 500 corporate index and more than 30 per cent of the world's largest commercial enterprises.
Financial disclosures reveal the company generated $16.3billion in revenue during the first six months of the year, driven by a 1,268 per cent surge in sales during the second quarter compared with the same period a year earlier. However, the business also reported an operating loss of $80.7billion over the six-month period as infrastructure and development costs mounted.
Artificial intelligence risks and commercial deals
The public listing is set to propel Anthropic founders Dario Amodei and his sister Daniela Amodei into the ranks of the wealthiest executives in the United States. The brother and sister team behind the Claude conversational artificial intelligence model intend to retain decisive corporate control by keeping a 50.1 per cent voting stake through founder shares.
Despite the immense financial interest, chief executive Dario Amodei has publicly called for a slower pace of industry development, citing the unpredictable power of frontier artificial intelligence models. City commentators have echoed concerns that Anthropic's advanced Claude Mythos model possesses such vast computational strength that it could severely disrupt global trade if misused.
Wider concerns are growing across the financial sector that artificial intelligence valuations have become unsustainably inflated. Nevertheless, rival technology companies continue to invest massive sums, with Facebook parent company Meta seeking to raise $95billion (£70billion) in equity to finance its computing infrastructure.
At the same time, Elon Musk's rocket business SpaceX has negotiated a $40billion financing agreement with alternative asset manager Apollo to lease artificial intelligence processor chips and specialised computer hardware. Brummer warned that if current market speculation falters, the collapse of the artificial intelligence boom could eclipse the financial devastation of the 2008 global banking crash.
Brazilian currency and stock market reaction
International investors also endured heavy losses in Latin America after veteran left-wing politician Luiz Inacio Lula da Silva secured victory in Brazil's presidential election to win a fourth term in office. The outcome overturned widespread expectations across trading desks that business-friendly candidate Flavio Bolsonaro would take power.
Flavio Bolsonaro, a national senator and the son of Brazil's 38th president Jair Bolsonaro, had been heavily favoured by corporate leaders. Following confirmation of Lula's return, Brazil's currency, the real, tumbled 12 per cent against the United States dollar in chaotic market trading.
Equities suffered an even sharper contraction, with the benchmark Bovespa stock index sinking 17 per cent and triggering emergency circuit-breakers that suspended trading across the exchange. Foreign investment funds experienced similar pressure, as the United States-listed iShares MSCI Brazil exchange-traded fund dropped 20 per cent on heavy volume.
The steep market reversal signals a difficult start for Lula's incoming administration as global fund managers assess the fiscal direction of South America's largest economy.

