Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to page 26 of his Department's Defence Investment Plan, published on 30 June 2026, what is the expected size of the arsenal of one-way attack drones; and by how much is this expected to grow annually.

I am withholding the details of one-way attack drone stockpile holdings, procurement quantities and projected annual growth rates for operational security reasons. The capability will, however, grow from a minimal deployable capability as part of the Army's wider One Way Effector programme.