In a speech to the U.S. Congress, King Charles III outlined the UK’s largest defense spending increase in over 30 years, a move that directly channels funds to a handful of American and British defense contractors.
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King Charles's speech signals 1 major pivot on UK defense spending
A speech by Britain’s King Charles III to the U.S. Congress on April 28 has signaled the country’s most significant military spending increase since the Cold War, cementing long-term revenue streams for an elite group of transatlantic defense contractors. While framed as a reaffirmation of the U.S.-UK alliance, the policy pivot directs billions toward joint weapons programs, most notably the F-35 fighter jet and the new AUKUS submarine pact, insulating these projects from near-term political friction.
“The United Kingdom recognizes that the threats we face demand a transformation in British defense,” the king said in his address. “That is why our country, in order to be fit for the future, has committed to the biggest sustained increase in defense spending since the Cold War.”
The commitment provides a tailwind for some of the largest and most expensive defense initiatives in history. The two main beneficiaries are the F-35 program, led by Lockheed Martin Corp., and the AUKUS submarine program, a joint venture between Australia, the UK, and the US. The F-35 program alone is projected to cost more than $2.1 trillion over its lifetime, with sustainment and maintenance accounting for approximately 75 percent of that total, according to a 2024 Government Accountability Office report.
This spending increase effectively locks in decades of revenue for prime contractors like Lockheed Martin and its partners, including BAE Systems Plc and Pratt & Whitney, a division of RTX Corp. The move comes even as the two allies navigate deep policy disagreements, particularly the UK’s refusal to join the U.S. in the war against Iran, which has strained the “special relationship.” The king’s speech, therefore, serves as a powerful piece of industrial diplomacy, shoring up military-industrial cooperation amid political divergence.
A $2 Trillion Jet at the Center
At the heart of the renewed spending is the F-35 Lightning II, one of the most complex weapons systems ever developed. While the UK is a top-tier partner in the program, its financial commitment solidifies the jet’s central role in NATO’s future air defense. For contractors, the real value lies not just in producing the estimated 2,400 jets but in the 94-year projected lifespan of the program.
The high proportion of sustainment costs—for repairs, spare parts, and software diagnostics—creates a continuous, non-discretionary revenue stream that is largely insulated from annual budget cycles. With each F-35 costing roughly $90 million to produce, the long-term maintenance contracts are where contractors derive the bulk of their profit. Lawmakers have noted the government’s reliance on Lockheed Martin for this work due to intellectual property rights, a point of contention that the spending increase is unlikely to change.
Soft Power, Hard Numbers
The king’s visit, commemorating the 250th anniversary of U.S. independence, was laden with geopolitical significance. Addressing Congress for the first time since his mother Queen Elizabeth II in 1991, Charles subtly pushed back against the Trump administration’s skepticism of international alliances and climate change initiatives. He explicitly called for the “unyielding resolve” needed for the defense of Ukraine, a position at odds with some elements of the current U.S. administration.
The speech was a masterclass in soft power, using the historical weight of the monarchy to advocate for policy continuity. By invoking shared sacrifices from World War II to 9/11, Charles aimed to smooth over recent fractures in the alliance. His message appeared to resonate more with Democrats, who gave standing ovations to his calls for defending alliances and upholding checks and balances on executive power, according to reports from the chamber. For the defense sector, the key takeaway is that even with political headwinds, the foundational military and industrial partnership remains a non-negotiable priority for the UK.
This article is for informational purposes only and does not constitute investment advice.
[1] Excerpt: King Charles on the Common Defense - WSJ[2] King Charles’ subtle but striking warning to America[3] King echoes Labour ideals during US Congress speech in soft power move[4] Why Lockheed Martin's $2 trillion F-35 program is so expensive[5] Royals attend state dinner hosted at the White House: Updates
