Trump Clashes With UK Over Iran Conflict

The diplomatic friction over Iran comes despite deepening economic and technological ties between the U.S. and the UK. In September 2025, the two nations signed a "Technology Prosperity Deal," fostering collaboration on AI, quantum computing, and nuclear energy. This agreement is expected to generate significant investment, with initial commitments from U.S. tech leaders and investors valued at around £150 billion. This modern alliance is also underpinned by robust defense-industrial integration. The UK is a top-tier partner in the U.S.'s F-35 fighter jet program, and the AUKUS security pact facilitates the sharing of defense technologies, including hypersonic and undersea capabilities, between the U.S., UK, and Australia. Legislation has been advanced in all three countries to create a system of license-free trade for defense-related companies to work on shared projects. Total trade in goods and services between the UK and Israel was £6.2 billion in the four quarters leading up to Q3 2025. During the same period, total UK exports to Israel amounted to £3.7 billion, while UK imports from Israel were £2.5 billion, resulting in a trade surplus of £1.1 billion for the UK. In contrast, UK trade with Iran is minimal. Total trade in goods and services between the UK and Iran was £433 million in the year to Q3 2025. U.S. goods trade with Iran is even smaller, totaling an estimated $60.0 million in 2025. The UK's two Queen Elizabeth-class aircraft carriers, HMS Queen Elizabeth and HMS Prince of Wales, were procured at a cost of approximately £6.2 billion. These carriers are designed to be central components of a Carrier Strike Group, each capable of carrying up to 40 aircraft, including the F-35B Lightning II jets. However, the operational readiness of the UK's carrier strike capability has been questioned. As of early 2026, both aircraft carriers were reportedly sidelined with mechanical issues, and there are concerns about a shortage of available escort vessels, with only about half of the Royal Navy's total fleet of 63 ships ready for duty. Despite the public disagreement over Iran, the UK has permitted the U.S. to use its military bases, such as RAF Fairford and the facility on Diego Garcia, for "defensive" actions to protect regional allies from Iranian missile and drone attacks. While British forces are not participating in offensive strikes, they are active in the region in defensive operations. Prime Minister Keir Starmer's government has stated it does not support "regime change from the skies" and has invoked international law as the basis for its decision not to join the U.S. and Israel in direct attacks on Iran. This cautious approach has been framed as learning from the lessons of the Iraq war.