On 10 July 2025 the insurer Rothesay took over all of Thales’s commitments under the Thales UK Pension Scheme, completing a transfer that Thales had begun in December 2023 with a net cash outflow of £850 million. The removal of about €2.8 billion of obligations from the group’s balance sheet in 2025 released no cash: the cash had left the company in 2023. The episode illustrates a problem that runs through European defence finance. Industrial capacity must expand while management teams continue to finance inventories, equipment, engineering, acquisitions, working capital and long-duration programmes, and retirement commitments sit inside the same corporate balance sheets. Those commitments do not constitute a single type of claim on capital. Some are actuarial measurements with no immediate cash consequence; some generate scheduled contributions; some are backed by assets that the employer cannot use; some can be transferred to insurers at a substantial one-off cost; and some may eventually produce contribution savings or, in tightly defined circumstances, a return of surplus. The size of a reported pension liability therefore says little about its effect on industrial finance. What remains unresolved is when a retirement commitment becomes an enforceable cash demand on the industrial sponsor, and whether such demands materially alter the resources available for European defence expansion.