The UK Treasury plans to assume direct control over the budget of the Global Combat Air Programme (GCAP), a $7.6 billion international project to develop a 6th-generation stealth fighter jet with Italy and Japan. This unprecedented move is a direct response to a history of substantial cost overruns by the Ministry of Defence (MoD) on major military projects, which the Treasury has labeled as "delinquent" in its attitude towards taxpayer money. The funding for GCAP represents $7.6 billion of a larger defense package.
This decision comes amid a tense disagreement within the government regarding defense spending. Chancellor Rachel Reeves had proposed a $15.2 billion defense package, which was significantly less than the $22.8 billion demanded by then-Defense Secretary John Healey and military chiefs. The eventual $19 billion compromise, with an additional $7.6 billion specifically for GCAP, still falls short of the military's initial requests, and $6 billion of this additional funding has strings attached, including Treasury oversight.
The long-term funding for GCAP is a critical and immediate concern, with interim funding agreements expiring at the end of June. This has raised alarms, particularly in Japan, whose Prime Minister Sanae Takaichi is scheduled to visit the UK to discuss the project. There are concerns within the UK government that GCAP could become "just the next HS2," referring to the High-Speed 2 rail network known for immense cost escalations and delays, with current projections for HS2 reaching up to $138 billion.
The challenge is compounded by the fact that the UK's overall fiscal position is tight. John Healey, now Chancellor, has inherited a difficult financial landscape with limited headroom for increased spending, especially in an inflationary environment. While a previous chancellor, Rachel Reeves, had increased the fiscal headroom to around $23 billion, economic pressures from global events and inflation have significantly reduced this buffer, potentially by half. This financial constraint makes it difficult for Healey to find an additional $22.8 billion for defense, as he had previously advocated for as Defense Secretary, without breaching tight borrowing rules. The management of GCAP, overseen by a multinational industrial consortium called Edgewing rather than individual defense ministries, further complicates accountability and financial oversight.
