Why GCAP matters as an industrial-sovereignty program

Britain and Japan regard Tempest as a national-security project tied to their ability to develop combat aircraft. Clarke links that priority to dissatisfaction with the F-35 programme, particularly delays in integrating British weapons despite Britain's financial contribution as a tier-one partner. He attributes those delays to contractors protecting their own weapons sales and argues that this has made Tempest more important to Britain. Japan is presented as having similar concerns about the freedom to adapt an aircraft after buying into an international programme. The dispute concerns the practical control customers retain over weapons integration and future capability.