The future of Britain's nuclear deterrent faces uncertainty as experts warn of potential fractures in US-UK defense relationships.
Experts are raising alarms regarding the United Kingdom's reliance on the United States for maintaining its nuclear arsenal, particularly in light of geopolitical shifts and potential changes in US leadership.
The debate surrounding the future of Trident, the UK’s aging submarine-launched nuclear missile system, has intensified, especially against the backdrop of speculations that former President
Donald Trump, or similar leaders, could withdraw the US from NATO commitments.
The UK's £3 billion-a-year Trident program has faced scrutiny over its efficiency and effectiveness, exemplified by a recent failed test launch that has added to ongoing concerns about its operational integrity.
Additionally, significant budgetary challenges loom as the UK seeks to replace its Vanguard submarines, prioritizing timely replacements over staying within fiscal limits.
In the face of these challenges, senior diplomatic figures, including the former British ambassador to the US, have suggested a reevaluation of the UK's nuclear cooperation with the US. Calls from notable political figures such as former UK Foreign Secretary Sir Malcolm Rifkind emphasize the necessity for the UK and France to collaborate more closely on nuclear defense, citing the risk of European defenselessness if US reliability diminishes.
Sir Malcolm noted, "The contribution by America must now be to some degree in doubt, not today or tomorrow, but over the next few years and certainly as long as Trump and people like him are in control in Washington."
The UK government has attempted to downplay these concerns, with a spokesperson reiterating that Keir Starmer views the US as a reliable ally and asserting the independence of the UK’s nuclear deterrent.
However, analysis reveals that the UK's nuclear system is significantly interconnected with US capabilities, relying on American technology for the design, manufacture, and maintenance of its arsenal, anchored in a 1958 bilateral agreement.
According to historical data, the UK had 50 missiles remaining from US stockpiles as of 2008.
Hans Kristensen, an expert on nuclear forces, pointed out the extent of dependence, stating, "It may be that Britain can fire weapons independently of the US, but the entire infrastructure covering missile compartments on submarines and the missiles themselves, all are supplied by the Americans."
Defence analysts are recognizing the need for contingency planning in the event of a strained transatlantic relationship that could disrupt UK access to US missiles.
Dr. Marion Messmer from Chatham House noted, "It would be a big risk if it wasn’t being planned for, but it’s something the UK government can’t be too public about."
The potential development of a new nuclear delivery system, or adapting existing ones to function independently of US systems, poses complex challenges.
Dr. Messmer indicated that transitioning from submarine-launched to air-launched nuclear capabilities could require comprehensive infrastructure changes, including new warheads and assembly facilities.
Interestingly, discussions regarding European defense collaboration have gained traction, with President Emmanuel Macron of France showing openness to extending France’s nuclear umbrella to cover other European nations.
Emerging figures in German politics, such as likely future chancellor Friedrich Merz, have suggested that Germany could contribute towards nuclear costs shared between France and the UK.
Calvin Bailey, a Labour MP on the defence committee, emphasized the historical strength of the US-UK alliance, particularly bolstered by the recent Aukus pact with Australia.
However, he acknowledged the necessity for Europe to take greater responsibility for its own security, particularly in collaboration with French partners in defense initiatives.