To ask the Secretary of State for Defence, how much and what proportion of his Department's budget was spent on AI development in each year since 2016.

The Defence AI Centre is monitoring over 250 projects and programmes that are exploring the use of AI technologies as part of a capability or system. However, it is difficult to calculate the Department’s overall spend on AI as cost data for these component elements is typically integrated within broader programme costs. Work is underway to better delineate this investment across MOD and improve our understanding over time.