Written questions by McKinnell.

How the Defence Investment Plan will support the reduction of supply chain delays in the defence sector, including by addressing supply chain delays to the Challenger programme.

Awaiting answer.

What percentage of a) new build and b) repaired old military homes, have been constructed using timber since the publication of the Defence Housing Strategy in December 2025, and whether his Department is considering strengthening the duty to 'have consideration' to the use of timber for construction as part of the overall strategy.

Awaiting answer.

What steps are being taken to address delays to the Aircrew Helmet programme, and how he will make sure his department's approach to the procurement aligns with the objectives of the Defence Investment Plan to promote to British manufacturing, sovereign capability and SME participation.

Awaiting answer.

Whether his Department has considered the potential merits of using timber to a) build new and b) repair old military homes.

The Defence Housing Strategy published on 3 November 2025, sets out a vision for the future transformation of military homes through a record £9 billion investment over a decade. The Department is in the early stages of the renovation programme. As we look to apply modern methods of construction to sustain and renew the Service Family Accommodation estate, timber may be considered, where it is determined to be the most cost effective and sustainable solution. This approach will be underpinned by thorough planning and stringent quality control to ensure it effectively supports military capability.