The decision gives British defence manufacturers a longer-term production requirement instead of relying solely on individual procurement cycles. It also signals that industrial capacity will be treated as part of military readiness rather than rebuilt only when demand rises.
The Defence Investment Plan does not disclose how much funding will be assigned to each weapon. It also provides no annual production targets, contract lengths or schedules for reaching continuous output.
The policy reflects lessons drawn from the war in Ukraine, where sustained operations have placed heavy demands on weapons stocks and manufacturing capacity. The plan says Britain needs sufficient inventories of munitions and spare parts, backed by rapid replenishment and resupply from industry.
The government also wants a faster cycle of innovation between manufacturers and frontline users. This would allow weapons and production processes to respond more quickly to operational requirements.
Continuous output of the four systems forms part of Britain’s planned “high-low” weapons mix for warfare at scale. The approach combines advanced weapons with lower-cost systems to provide commanders with more options against different targets.
The industrial strategy includes at least six new munitions and energetics factories in Britain. Potential locations have been identified in England, Scotland and Wales, with the first facility due to begin construction by the end of 2026.
The factory programme is expected to support at least 1,000 new jobs and expand domestic production of materials used in ammunition. That capacity will provide part of the supply base needed to sustain weapons manufacturing and replenish stockpiles.
Britain has also committed £1.6 billion to supply thousands of air-defence missiles to Ukraine from production facilities in Northern Ireland. The investment provides another source of sustained demand for the country’s missile industry.
The “always-on” model extends beyond CAMM, LMM, ASRAAM and NLAW. Britain plans to examine restarting Sting Ray torpedo production for Norway and other export customers while bringing sonobuoy manufacturing into the UK.
