Lead

Japan’s confidence in Britain as a defence partner is wavering amid reports that funding shortfalls in London could delay the next-generation fighter jet being developed jointly by Japan, Britain, and Italy. The Global Combat Air Programme (GCAP) aims to deliver a new fighter by 2035, but a report by The Telegraph has suggested the aircraft could be delayed by several years due to uncertainty over Britain’s defence spending plans.

The report has raised concerns that Japan might have to extend the service life of its existing fighters—aircraft GCAP was meant to replace—potentially weakening national security at a time of growing Chinese air power. “My contacts in the defence and security community here in Tokyo are expressing a high degree of frustration and disappointment in the British approach,” said Garren Mulloy, a professor of international relations at Daito Bunka University and a specialist in military issues.

Coverage Comparison

Two reports from the South China Morning Post (SCMP) capture contrasting angles on the same set of events. The first, published before the weekend, focuses on the challenges facing GCAP, emphasising the uncertainty in Britain’s financial commitment and the potential delays. The second report, covering a meeting between Japanese Prime Minister Sanae Takaichi and British Prime Minister Keir Starmer, strikes a more optimistic tone, highlighting both leaders’ reaffirmation of their dedication to the project.

The difference in tone reflects a broader tension: while official statements from Tokyo and London underscore their commitment to GCAP, underlying questions about funding and timelines remain unresolved. The first SCMP article quotes Professor Mulloy’s candid assessment of Japanese frustration, while the second leans on official remarks from Takaichi and Starmer, who expressed shared satisfaction with the project’s trajectory.

Key Claims

  • Japan and Britain are developing a next-generation fighter jet with Italy through the Global Combat Air Programme (GCAP), according to both SCMP reports.
  • The GCAP project is intended to deliver a new fighter by 2035.
  • Funding shortfalls in London could delay the project, as reported by The Telegraph and cited in the SCMP.
  • Britain’s Defence Investment Plan, initially expected last autumn, has been delayed due to a spending row between the UK defence ministry and the Treasury.
  • The plan is expected to confirm that funding for GCAP will be released only in the mid-2030s, according to The Telegraph’s report, though this specific projection has not been independently verified.
  • Japanese Prime Minister Sanae Takaichi met with British counterpart Keir Starmer on Sunday to discuss GCAP, as reported by the official statements covered in the SCMP.
  • The UK and Japan are considering elevating their ties to a near-alliance level, with Takaichi reportedly saying, “Given the GCAP project, I think we have reached a level that we can call a near-alliance.”
  • The launch of the next phase of GCAP is expected to be discussed through an international contract set to be signed this month, according to a British government statement.
  • UK Defence Secretary John Healey, a champion of the project, resigned on Thursday, as noted in the SCMP report.

Perspectives

Japan’s Perspective

Japanese officials and experts express caution and some frustration over Britain’s delayed financial commitments. There is worry that if the project slips, Japan’s national security could be affected, especially in the face of China’s expanding air power. The need to extend the service life of older fighters is seen as an unwelcome fallback.

UK’s Perspective

Despite internal delays in its own defence planning, the British government maintains that GCAP is a priority. Prime Minister Starmer’s meeting with Takaichi was designed to reaffirm the UK’s commitment, and the upcoming signing of an international contract for the next phase is presented as evidence of continued dedication. The decision to postpone the Defence Investment Plan is framed as a budgetary matter rather than a withdrawal from GCAP.

The Project’s Broader Context

GCAP is a trilateral programme intended to produce a sixth-generation fighter by 2035. It is critical to each participating country’s future air defence and industrial strategy. Delays in any one partner’s contributions could have cascading effects, affecting procurement cycles, replacement schedules, and overall capability—risks that are understood on all sides, even as they navigate domestic political and fiscal pressures.