Published by the Ministry of Defence in 2026, the Defence Investment Plan (DIP) sets out the UK government’s strategic roadmap for defence spending over the next four years and beyond, backed by £298 billion in total investment through to 2029/30. The plan is framed around three core pillars: transforming the Armed Forces for modern warfighting, backing British industry and jobs, and stepping up UK leadership within NATO. It implements the vision of the 2025 Strategic Defence Review, which the government inherited alongside a programme described as underfunded and overcommitted, with 47 out of 49 major defence projects delayed or over…
